The school carried out the "beauty for the community" activity. The fourth grade collected a total of 9.5kg of white garbage. The amount of white garbage collected by the fifth grade was 1.2 times that of the fourth grade, which was 3.1kg less than that of the sixth grade. How many kilograms of white garbage were collected by the sixth grade?
学校开展"为社区美容"活动，四年级共收集白色垃圾9.5kg，五年级收集的白色垃圾是四年级收集量的1.2倍，比六年级少收集3.1kg，六年级共收集白色垃圾多少千克？
<gadget id="calculator">9.5 * 1.2</gadget>
<output>11.4</output>

<gadget id="calculator">11.4 + 3.1</gadget>
<output>14.5</output>

<result>14.5</result>