Home / 13,649.88-20,474.82-3,789.24

Finding the Fourth Proportional to 13,649.88, 20,474.82 and 3,789.24

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Solution

The fourth proportional to 13,649.88, 20,474.82 and 3,789.24 is: 5,683.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,649.88 : 20,474.82 = 3,789.24 : x
  2. Step 2: Convert to fraction form
    13,649.88/20,474.82 = 3,789.24/x
  3. Step 3: Cross multiply
    13,649.88x = 20,474.82 × 3,789.24
  4. Step 4: Simplify right side
    13,649.88x = 77,584,006.94
  5. Step 5: Solve for x
    x = 77,584,006.94/13,649.88
  6. Step 6: Final answer
    x = 5,683.86

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Double scale
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Similar ratio
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1.5x scale

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.