Question

Find the value of x if 12 ,18 and x are in continued proportion​

Answer 1

use this method to solve ur Q : Solution:

25, 35 and x are in continued proportion

\Rightarrow⇒ 25 : 35 = 35 : x

\Rightarrow\ 25\times x=35\times35⇒ 25×x=35×35

x=\frac{35\times35}{25}x=  

25

35×35

​  

 

\Rightarrow⇒ x= 49

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Answer 2

Answer:

Given ,

12 , 18 , x are in continued proportion

we know if a , b , c are in continued proportion

a : b : :: b : c

a/b = b/c

b² = ac

In this case

a = 12

b = 18

c = x

or 12 x = 18 x 18

or x = 324 / 12

or x = 27

So the value of x is 27

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