Question
Find the mean proportional between:
6 and 24
6 and 24
✓
Answer
Let x be the mean proportional, then
$6:\text{x}::\text{x}:24$
$\Rightarrow\text{x}^2=6\times24=144$
$\text{x}=\sqrt{144}=12$
Mean proportional = 12
$6:\text{x}::\text{x}:24$
$\Rightarrow\text{x}^2=6\times24=144$
$\text{x}=\sqrt{144}=12$
Mean proportional = 12
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