Question

if x ,4,9,12 are in propation then the value of x is​

Answer 1

proportion = x : 4 :: 9 : 12

product of extremes = products of means

12x = 4 x 9

12x = 36

x = 36/12

x = 3

Answer 2

X,4,9 and 12 are in proportion....

Therefore,

x : 4 :: 9 : 12

=>x/4 = 9/12...

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