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Finding the Fourth Proportional to 11,377.73, 15,695.07 and 7,127.88

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Solution

The fourth proportional to 11,377.73, 15,695.07 and 7,127.88 is: 9,832.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,377.73 : 15,695.07 = 7,127.88 : x
  2. Step 2: Convert to fraction form
    11,377.73/15,695.07 = 7,127.88/x
  3. Step 3: Cross multiply
    11,377.73x = 15,695.07 × 7,127.88
  4. Step 4: Simplify right side
    11,377.73x = 111,872,489.97
  5. Step 5: Solve for x
    x = 111,872,489.97/11,377.73
  6. Step 6: Final answer
    x = 9,832.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.