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Finding the Fourth Proportional to 8,375.54, 12,537.39 and 7,131.38

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Solution

The fourth proportional to 8,375.54, 12,537.39 and 7,131.38 is: 10,675.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,375.54 : 12,537.39 = 7,131.38 : x
  2. Step 2: Convert to fraction form
    8,375.54/12,537.39 = 7,131.38/x
  3. Step 3: Cross multiply
    8,375.54x = 12,537.39 × 7,131.38
  4. Step 4: Simplify right side
    8,375.54x = 89,408,892.30
  5. Step 5: Solve for x
    x = 89,408,892.30/8,375.54
  6. Step 6: Final answer
    x = 10,675.00

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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.