Finding the Fourth Proportional to 14,919.93, 20,589.93 and 8,205.99
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Solution
The fourth proportional to 14,919.93, 20,589.93 and 8,205.99 is: 11,324.50
Step by Step Solution
- Step 1: Write the proportion equation
14,919.93 : 20,589.93 = 8,205.99 : x - Step 2: Convert to fraction form
14,919.93/20,589.93 = 8,205.99/x - Step 3: Cross multiply
14,919.93x = 20,589.93 × 8,205.99 - Step 4: Simplify right side
14,919.93x = 168,960,646.47 - Step 5: Solve for x
x = 168,960,646.47/14,919.93 - Step 6: Final answer
x = 11,324.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.