The fourth proportional to (5, 8, 15 ) is:

1.	The fourth proportional to (5, 8, 15 ) is:
A.	18
B.	19
C.	20
D.	24
Answer» E.

Discussion

In a mixture (60 litres, ) the ratio of milk and water ( 2 : 1. ) If this ratio is to be (1 : 2, ) then the quanity of water to be further added is:
Seats for Mathematics, Physics and Biology in a school are in the ratio ( 5 : 7 : 8. ) There is a proposal to increase these seats by (40 )%, (50 )% and (75 )% respectively. What will be the ratio of increased seats?
Two numbers are respectively (20 )% and (50 )% more than a (3rd ) number. The ratio of the two numbers is:
A sum of money is to be distributed among (A, B, C, D ) in the proportion of (5 : 2 : 4 : 3. ) If (C ) gets (Rs. 1000 ) more than (D, ) what is (B's ) share?
(A ) and (B ) together have (RS. 1210. ) If ( frac{4}{15} ) of (A,s ) amount is equal to ( frac{2}{5} ) of (B's ) amount, how much amount does (B ) have?
In a bag, there are coins of (25 p, 10 p ) and (5 p ) in the ratio of (1 : 2 : 3. ) If there is (Rs. 30 ) in all, how many (5 p ) coins are there?
The fourth proportional to (5, 8, 15 ) is:
If (40 )% of a number is equal to two-third of another number, what is the ratio of first number to the second number?
Two number are in the ratio (3 : 5. ) If (9 ) is subtracted from each, the new numbers are in the ratio (12 : 23. ) The smaller number is:
The salaries (A, B, C ) are in the ratio (2 : 3 : 5. ) If the increments of (15 )%, (10 )% and (20 )% are allowed respectively in their salaries, then what will be new ratio of their salaries?