Home / 13,843.72-20,764.85-3,982.61

Finding the Fourth Proportional to 13,843.72, 20,764.85 and 3,982.61

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Solution

The fourth proportional to 13,843.72, 20,764.85 and 3,982.61 is: 5,973.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,843.72 : 20,764.85 = 3,982.61 : x
  2. Step 2: Convert to fraction form
    13,843.72/20,764.85 = 3,982.61/x
  3. Step 3: Cross multiply
    13,843.72x = 20,764.85 × 3,982.61
  4. Step 4: Simplify right side
    13,843.72x = 82,698,331.26
  5. Step 5: Solve for x
    x = 82,698,331.26/13,843.72
  6. Step 6: Final answer
    x = 5,973.71

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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.