Home / 11,226.60-15,487.20-7,251.12

Finding the Fourth Proportional to 11,226.60, 15,487.20 and 7,251.12

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Solution

The fourth proportional to 11,226.60, 15,487.20 and 7,251.12 is: 10,002.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,226.60 : 15,487.20 = 7,251.12 : x
  2. Step 2: Convert to fraction form
    11,226.60/15,487.20 = 7,251.12/x
  3. Step 3: Cross multiply
    11,226.60x = 15,487.20 × 7,251.12
  4. Step 4: Simplify right side
    11,226.60x = 112,299,545.66
  5. Step 5: Solve for x
    x = 112,299,545.66/11,226.60
  6. Step 6: Final answer
    x = 10,002.99

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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.