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If 12, 14, 9 and x are in proportion then find the value of x.
12/14 = 9/x
x = 9 x14 / 12 = 10.5
If 8, 18, 18 are x in proportion then find the value of x.
8/18 :: 18/x
By cross multiply, we get
8x = 324
x = 40.5
If 3, 8 and15 ,x are in proportion then find the value of x.
If 5, 30, 3 and x are in proportion then find the value of x.
If x, 24, 30 and 16 are in proportion then find the value of x.
If 9, 18, x and 8 are in proportion then find the value of x.
If x, 30,24 and 16 are in proportion then find the value of x.
If 49, 35, x and 25 are in proportion then find the value of x.
The ratio of the present age of father to that of son is 7:2. After 10 years their ages will be in the ratio of 9:4. The present ages of the father is
Let present age of father be 7x and that of son is 2x
after 10 years, their ages will be 7x+10 and 2x+10 respectively
so ratio will be
(7x+10)/(2x+10) = 9/4
28x+40 = 18x+90
10x = 50
x = 5
so present age of father is 7x =
35 years
If 14, 16, x and 24 are in proportion then find the value of x.
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