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Finding the Fourth Proportional to 7,862.73, 11,789.23 and 3,703.78

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Solution

The fourth proportional to 7,862.73, 11,789.23 and 3,703.78 is: 5,553.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,862.73 : 11,789.23 = 3,703.78 : x
  2. Step 2: Convert to fraction form
    7,862.73/11,789.23 = 3,703.78/x
  3. Step 3: Cross multiply
    7,862.73x = 11,789.23 × 3,703.78
  4. Step 4: Simplify right side
    7,862.73x = 43,664,695.77
  5. Step 5: Solve for x
    x = 43,664,695.77/7,862.73
  6. Step 6: Final answer
    x = 5,553.38

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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.