Home / 18,517.17-25,553.90-10,559.87

Finding the Fourth Proportional to 18,517.17, 25,553.90 and 10,559.87

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Solution

The fourth proportional to 18,517.17, 25,553.90 and 10,559.87 is: 14,572.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,517.17 : 25,553.90 = 10,559.87 : x
  2. Step 2: Convert to fraction form
    18,517.17/25,553.90 = 10,559.87/x
  3. Step 3: Cross multiply
    18,517.17x = 25,553.90 × 10,559.87
  4. Step 4: Simplify right side
    18,517.17x = 269,845,681.42
  5. Step 5: Solve for x
    x = 269,845,681.42/18,517.17
  6. Step 6: Final answer
    x = 14,572.73

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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.