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Finding the Fourth Proportional to 8,645.57, 11,930.10 and 5,060.94

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Solution

The fourth proportional to 8,645.57, 11,930.10 and 5,060.94 is: 6,983.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,645.57 : 11,930.10 = 5,060.94 : x
  2. Step 2: Convert to fraction form
    8,645.57/11,930.10 = 5,060.94/x
  3. Step 3: Cross multiply
    8,645.57x = 11,930.10 × 5,060.94
  4. Step 4: Simplify right side
    8,645.57x = 60,377,520.29
  5. Step 5: Solve for x
    x = 60,377,520.29/8,645.57
  6. Step 6: Final answer
    x = 6,983.64

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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.