Home / 18,551.15-25,589.19-15,153.09

Finding the Fourth Proportional to 18,551.15, 25,589.19 and 15,153.09

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Solution

The fourth proportional to 18,551.15, 25,589.19 and 15,153.09 is: 20,901.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,551.15 : 25,589.19 = 15,153.09 : x
  2. Step 2: Convert to fraction form
    18,551.15/25,589.19 = 15,153.09/x
  3. Step 3: Cross multiply
    18,551.15x = 25,589.19 × 15,153.09
  4. Step 4: Simplify right side
    18,551.15x = 387,755,299.10
  5. Step 5: Solve for x
    x = 387,755,299.10/18,551.15
  6. Step 6: Final answer
    x = 20,901.95

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Double scale
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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.