Home / 13,777.97-20,663.85-3,917.03

Finding the Fourth Proportional to 13,777.97, 20,663.85 and 3,917.03

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Solution

The fourth proportional to 13,777.97, 20,663.85 and 3,917.03 is: 5,874.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,777.97 : 20,663.85 = 3,917.03 : x
  2. Step 2: Convert to fraction form
    13,777.97/20,663.85 = 3,917.03/x
  3. Step 3: Cross multiply
    13,777.97x = 20,663.85 × 3,917.03
  4. Step 4: Simplify right side
    13,777.97x = 80,940,920.37
  5. Step 5: Solve for x
    x = 80,940,920.37/13,777.97
  6. Step 6: Final answer
    x = 5,874.66

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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.