Home / 8,665.28-12,997.84-3,471.12

Finding the Fourth Proportional to 8,665.28, 12,997.84 and 3,471.12

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Solution

The fourth proportional to 8,665.28, 12,997.84 and 3,471.12 is: 5,206.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,665.28 : 12,997.84 = 3,471.12 : x
  2. Step 2: Convert to fraction form
    8,665.28/12,997.84 = 3,471.12/x
  3. Step 3: Cross multiply
    8,665.28x = 12,997.84 × 3,471.12
  4. Step 4: Simplify right side
    8,665.28x = 45,117,062.38
  5. Step 5: Solve for x
    x = 45,117,062.38/8,665.28
  6. Step 6: Final answer
    x = 5,206.65

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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.