In a ratio, the product of the two outer terms is 12, and one of the inner terms is 2.4. What is the other term.
在一个比例中，两个外项的积是12，其中一个内项是2.4．另一个内项是多少．
<gadget id="calculator">12 / 2.4</gadget>
<output>5</output>

<result>5</result>