Home / 11,229.28-15,497.84-9,337.61

Finding the Fourth Proportional to 11,229.28, 15,497.84 and 9,337.61

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Solution

The fourth proportional to 11,229.28, 15,497.84 and 9,337.61 is: 12,887.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,229.28 : 15,497.84 = 9,337.61 : x
  2. Step 2: Convert to fraction form
    11,229.28/15,497.84 = 9,337.61/x
  3. Step 3: Cross multiply
    11,229.28x = 15,497.84 × 9,337.61
  4. Step 4: Simplify right side
    11,229.28x = 144,712,661.59
  5. Step 5: Solve for x
    x = 144,712,661.59/11,229.28
  6. Step 6: Final answer
    x = 12,887.09

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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.