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Finding the Fourth Proportional to 8,553.07, 12,800.40 and 7,167.97

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Solution

The fourth proportional to 8,553.07, 12,800.40 and 7,167.97 is: 10,727.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,553.07 : 12,800.40 = 7,167.97 : x
  2. Step 2: Convert to fraction form
    8,553.07/12,800.40 = 7,167.97/x
  3. Step 3: Cross multiply
    8,553.07x = 12,800.40 × 7,167.97
  4. Step 4: Simplify right side
    8,553.07x = 91,752,883.19
  5. Step 5: Solve for x
    x = 91,752,883.19/8,553.07
  6. Step 6: Final answer
    x = 10,727.48

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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.