Final answer:
The scale based on relations like 1/4" = 1' or 1/8" = 1' is the Architect's scale. Used in drafting and design, the smaller number represents the drawing, while the larger one represents the actual size.
Step-by-step explanation:
The scale that is based on the ratios like 1/4" = 1' or 1/8" = 1' is the Architect's scale. These scales are often used in drafting and design, where a drawing might need to represent a physical object much larger than the paper it's drawn on.
In these ratios, the smaller number represents the measurement on paper (drawing), while the larger number represents the actual size of the object. For instance, 1/4" = 1' means that for every 1/4" on the paper, it's equivalent to 1' in real life, making it convenient for architects to draw buildings on a reasonable scale.
Learn more about Architect's Scale