Another Principle of Design/Art Proportion What is the difference between Scale and Proportion? Proportion Clue Proportion is when one part of an object is the correct size compared to another parts of the object. In most cases the front legs of a horse are two lengths of the horses head long. That would indicate correct proportion. Scale refers to size as measured against a standard reference. This statue is made full scale as seen by this image of a real boy sitting by it. This image is of a shoe is a much larger scale than full but it does have correct proportion. Claes Oldenberg is an artist famous for making sculptures that are in large scale yet the proportion of the object appears correct. Claes (born January 28, 1929) is a Swedish American sculptor, best known for his public art installations typically featuring very large replicas of everyday objects.Swedish Americansculptorpublic art Claes Oldenberg What scale do the following images show? Is the proportion correct on them? Hierarchical Proportion is used when images or statues differ in scale to indicate importance.