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Finding the Fourth Proportional to 8,877.54, 12,251.61 and 5,151.54

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Solution

The fourth proportional to 8,877.54, 12,251.61 and 5,151.54 is: 7,109.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,877.54 : 12,251.61 = 5,151.54 : x
  2. Step 2: Convert to fraction form
    8,877.54/12,251.61 = 5,151.54/x
  3. Step 3: Cross multiply
    8,877.54x = 12,251.61 × 5,151.54
  4. Step 4: Simplify right side
    8,877.54x = 63,114,658.98
  5. Step 5: Solve for x
    x = 63,114,658.98/8,877.54
  6. Step 6: Final answer
    x = 7,109.48

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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.