Home / 9,127.80-13,691.54-2,553.89

Finding the Fourth Proportional to 9,127.80, 13,691.54 and 2,553.89

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Solution

The fourth proportional to 9,127.80, 13,691.54 and 2,553.89 is: 3,830.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,127.80 : 13,691.54 = 2,553.89 : x
  2. Step 2: Convert to fraction form
    9,127.80/13,691.54 = 2,553.89/x
  3. Step 3: Cross multiply
    9,127.80x = 13,691.54 × 2,553.89
  4. Step 4: Simplify right side
    9,127.80x = 34,966,605.86
  5. Step 5: Solve for x
    x = 34,966,605.86/9,127.80
  6. Step 6: Final answer
    x = 3,830.78

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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.