Question

2) Which number is to be added to each of 4,10,12,24 so that the resulting numbers are

in proportion.

please give me answer fast​

Answer 1

Answer:

5 is the right answer please brainlist me

Answer 2

Given :   numbers 4,10,12,24  

To Find : Which number is to be added to each of 4,10,12,24 so that the resulting numbers are  in proportion.

Solution:

Let say number x  is added

Then  

4 + x  , 10 + x , 12 + x , 24 + x

(4 + x) : (10 + x) :: ( 12 + x) : (24 + x)

=> (4 + x)/(10 + x)  = (12 + x)/(24 + x)

=> (4 + x)(24 + x) = (10 + x)(12 + x)

=> 96 + 4x + 24x + x²  = 120 + 10x + 12x + x²

=> 96 + 28x  = 120 + 22x

=> 28x - 22x  = 120 - 96

=> 6x  = 24

=> x = 4

4 to be added to each of 4,10,12,24 so that the resulting numbers are

in proportion.

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