Home / 8,572.29-12,857.49-2,729.36

Finding the Fourth Proportional to 8,572.29, 12,857.49 and 2,729.36

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Solution

The fourth proportional to 8,572.29, 12,857.49 and 2,729.36 is: 4,093.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,572.29 : 12,857.49 = 2,729.36 : x
  2. Step 2: Convert to fraction form
    8,572.29/12,857.49 = 2,729.36/x
  3. Step 3: Cross multiply
    8,572.29x = 12,857.49 × 2,729.36
  4. Step 4: Simplify right side
    8,572.29x = 35,092,654.62
  5. Step 5: Solve for x
    x = 35,092,654.62/8,572.29
  6. Step 6: Final answer
    x = 4,093.73

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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.