In a proportional formula, where three numbers are known to be 6, 8 and 10, what is the possible fourth number.
在一个比例式中，已知其中的三个数是6、8和10，则第四个数可能是多少．
<gadget id="calculator">6 / 10</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(3/5) * 8</gadget>
<output>24/5 = around 4.8</output>

<result>24/5 = around 4.8</result>