Home / 10,665.80-16,001.19-3,645.87

Finding the Fourth Proportional to 10,665.80, 16,001.19 and 3,645.87

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Solution

The fourth proportional to 10,665.80, 16,001.19 and 3,645.87 is: 5,469.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,665.80 : 16,001.19 = 3,645.87 : x
  2. Step 2: Convert to fraction form
    10,665.80/16,001.19 = 3,645.87/x
  3. Step 3: Cross multiply
    10,665.80x = 16,001.19 × 3,645.87
  4. Step 4: Simplify right side
    10,665.80x = 58,338,258.59
  5. Step 5: Solve for x
    x = 58,338,258.59/10,665.80
  6. Step 6: Final answer
    x = 5,469.66

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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.