1. capable of being proportioned or adjusted in proper relation to something else
Usage: formal or archaic
2. having parts or elements in correct or pleasing proportion to each other
Usage: archaic

Examples

• The architect designed a proportionable structure with balanced dimensions.
• The costs were proportionable to the benefits received.
• A proportionable response to the offense was deemed necessary.
• The painting's proportionable elements created a sense of visual harmony.
• The salary increase was proportionable to the employee's experience and performance.