Question

the fourth proportional to 4,6,8 is what

Answer 1

Let the forth proportion be x

we know that

Product of mean propertionals = product of extreme proportions

6 × 8 = 4 × x

x = 6 × 8/4

x = 6 × 2

x = 12

So the forth proportional is 12

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Answer 2

Answer:

12

Step-by-step explanation:

let the fourth proportional be x

Therefore 4,6,8 and x are in proportion.

=> 4:6 = 8:x

=> 4x = 6×8 (cross multiply)

=> x = 48/4

=> x= 12

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