Home / 13,728.24-20,625.17-8,807.49

Finding the Fourth Proportional to 13,728.24, 20,625.17 and 8,807.49

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Solution

The fourth proportional to 13,728.24, 20,625.17 and 8,807.49 is: 13,232.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,728.24 : 20,625.17 = 8,807.49 : x
  2. Step 2: Convert to fraction form
    13,728.24/20,625.17 = 8,807.49/x
  3. Step 3: Cross multiply
    13,728.24x = 20,625.17 × 8,807.49
  4. Step 4: Simplify right side
    13,728.24x = 181,655,934.49
  5. Step 5: Solve for x
    x = 181,655,934.49/13,728.24
  6. Step 6: Final answer
    x = 13,232.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.