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Finding the Fourth Proportional to 8,757.28, 12,082.08 and 5,353.04

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Solution

The fourth proportional to 8,757.28, 12,082.08 and 5,353.04 is: 7,385.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,757.28 : 12,082.08 = 5,353.04 : x
  2. Step 2: Convert to fraction form
    8,757.28/12,082.08 = 5,353.04/x
  3. Step 3: Cross multiply
    8,757.28x = 12,082.08 × 5,353.04
  4. Step 4: Simplify right side
    8,757.28x = 64,675,857.52
  5. Step 5: Solve for x
    x = 64,675,857.52/8,757.28
  6. Step 6: Final answer
    x = 7,385.38

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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.