Home / 9,115.28-13,664.85-3,572.61

Finding the Fourth Proportional to 9,115.28, 13,664.85 and 3,572.61

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Solution

The fourth proportional to 9,115.28, 13,664.85 and 3,572.61 is: 5,355.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,115.28 : 13,664.85 = 3,572.61 : x
  2. Step 2: Convert to fraction form
    9,115.28/13,664.85 = 3,572.61/x
  3. Step 3: Cross multiply
    9,115.28x = 13,664.85 × 3,572.61
  4. Step 4: Simplify right side
    9,115.28x = 48,819,135.21
  5. Step 5: Solve for x
    x = 48,819,135.21/9,115.28
  6. Step 6: Final answer
    x = 5,355.74

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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.