Home / 13,645.98-20,468.97-3,785.31

Finding the Fourth Proportional to 13,645.98, 20,468.97 and 3,785.31

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Solution

The fourth proportional to 13,645.98, 20,468.97 and 3,785.31 is: 5,677.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,645.98 : 20,468.97 = 3,785.31 : x
  2. Step 2: Convert to fraction form
    13,645.98/20,468.97 = 3,785.31/x
  3. Step 3: Cross multiply
    13,645.98x = 20,468.97 × 3,785.31
  4. Step 4: Simplify right side
    13,645.98x = 77,481,396.83
  5. Step 5: Solve for x
    x = 77,481,396.83/13,645.98
  6. Step 6: Final answer
    x = 5,677.97

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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.