Overnite Delivery Service should charge $4,000 for a large truckload.
Since each dimension of the large truck (height, width, and length) is twice that of the small truck, the volume of the large truck is 8 times that of the small truck. So, for a large truckload, Overnite should charge 8 times the price of a small truckload. That’s 8 × $500, or $4,000.