Xiao Ming scales up a photo with a length of 6 cm and a width of 4 cm on the computer. The length of the enlarged photo is 15 cm. What is the width of the enlarged photo in cm?
小明在电脑上把一张长6cm、宽4cm的照片按比例放大，放大后照片的长是15cm，则放大后的宽是多少cm．
<gadget id="calculator">6 / 4</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">15 / (3/2)</gadget>
<output>10</output>

<result>10</result>