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Finding the Fourth Proportional to 7,517.28, 10,375.11 and 4,375.29

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Solution

The fourth proportional to 7,517.28, 10,375.11 and 4,375.29 is: 6,038.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,517.28 : 10,375.11 = 4,375.29 : x
  2. Step 2: Convert to fraction form
    7,517.28/10,375.11 = 4,375.29/x
  3. Step 3: Cross multiply
    7,517.28x = 10,375.11 × 4,375.29
  4. Step 4: Simplify right side
    7,517.28x = 45,394,115.03
  5. Step 5: Solve for x
    x = 45,394,115.03/7,517.28
  6. Step 6: Final answer
    x = 6,038.64

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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.