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Finding the Fourth Proportional to 5,711.28, 8,553.62 and 5,553.64

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Solution

The fourth proportional to 5,711.28, 8,553.62 and 5,553.64 is: 8,317.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,711.28 : 8,553.62 = 5,553.64 : x
  2. Step 2: Convert to fraction form
    5,711.28/8,553.62 = 5,553.64/x
  3. Step 3: Cross multiply
    5,711.28x = 8,553.62 × 5,553.64
  4. Step 4: Simplify right side
    5,711.28x = 47,503,687.44
  5. Step 5: Solve for x
    x = 47,503,687.44/5,711.28
  6. Step 6: Final answer
    x = 8,317.51

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1.5x scale

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.