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Finding the Fourth Proportional to 8,108.97, 12,156.97 and 5,443.39

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Solution

The fourth proportional to 8,108.97, 12,156.97 and 5,443.39 is: 8,160.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,108.97 : 12,156.97 = 5,443.39 : x
  2. Step 2: Convert to fraction form
    8,108.97/12,156.97 = 5,443.39/x
  3. Step 3: Cross multiply
    8,108.97x = 12,156.97 × 5,443.39
  4. Step 4: Simplify right side
    8,108.97x = 66,175,128.93
  5. Step 5: Solve for x
    x = 66,175,128.93/8,108.97
  6. Step 6: Final answer
    x = 8,160.73

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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.