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Finding the Fourth Proportional to 8,663.73, 12,995.49 and 2,089.88

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Solution

The fourth proportional to 8,663.73, 12,995.49 and 2,089.88 is: 3,134.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,663.73 : 12,995.49 = 2,089.88 : x
  2. Step 2: Convert to fraction form
    8,663.73/12,995.49 = 2,089.88/x
  3. Step 3: Cross multiply
    8,663.73x = 12,995.49 × 2,089.88
  4. Step 4: Simplify right side
    8,663.73x = 27,158,949.66
  5. Step 5: Solve for x
    x = 27,158,949.66/8,663.73
  6. Step 6: Final answer
    x = 3,134.79

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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.