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Finding the Fourth Proportional to 8,542.82, 12,805.38 and 4,154.82

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Solution

The fourth proportional to 8,542.82, 12,805.38 and 4,154.82 is: 6,227.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,542.82 : 12,805.38 = 4,154.82 : x
  2. Step 2: Convert to fraction form
    8,542.82/12,805.38 = 4,154.82/x
  3. Step 3: Cross multiply
    8,542.82x = 12,805.38 × 4,154.82
  4. Step 4: Simplify right side
    8,542.82x = 53,204,048.93
  5. Step 5: Solve for x
    x = 53,204,048.93/8,542.82
  6. Step 6: Final answer
    x = 6,227.93

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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.