Question

4,7and 12 find the fourth proportional​

Answer 1

Answer:

21

Step-by-step explanation:

as 4:7::12;x

x=7×12/4=21

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Answer 2

Let the fourth proportional be x

4:7::12:x

4/7=12/x

4x=7*12

x=7*12/4 =21

The fourth proportional is 21