Home / 13,498.27-20,247.87-3,637.78

Finding the Fourth Proportional to 13,498.27, 20,247.87 and 3,637.78

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Solution

The fourth proportional to 13,498.27, 20,247.87 and 3,637.78 is: 5,456.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,498.27 : 20,247.87 = 3,637.78 : x
  2. Step 2: Convert to fraction form
    13,498.27/20,247.87 = 3,637.78/x
  3. Step 3: Cross multiply
    13,498.27x = 20,247.87 × 3,637.78
  4. Step 4: Simplify right side
    13,498.27x = 73,657,305.62
  5. Step 5: Solve for x
    x = 73,657,305.62/13,498.27
  6. Step 6: Final answer
    x = 5,456.80

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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.