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Finding the Fourth Proportional to 8,337.67, 12,508.26 and 3,143.50

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Solution

The fourth proportional to 8,337.67, 12,508.26 and 3,143.50 is: 4,715.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,337.67 : 12,508.26 = 3,143.50 : x
  2. Step 2: Convert to fraction form
    8,337.67/12,508.26 = 3,143.50/x
  3. Step 3: Cross multiply
    8,337.67x = 12,508.26 × 3,143.50
  4. Step 4: Simplify right side
    8,337.67x = 39,319,715.31
  5. Step 5: Solve for x
    x = 39,319,715.31/8,337.67
  6. Step 6: Final answer
    x = 4,715.91

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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.