Home / 13,414.82-20,122.22-3,555.09

Finding the Fourth Proportional to 13,414.82, 20,122.22 and 3,555.09

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Solution

The fourth proportional to 13,414.82, 20,122.22 and 3,555.09 is: 5,332.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,414.82 : 20,122.22 = 3,555.09 : x
  2. Step 2: Convert to fraction form
    13,414.82/20,122.22 = 3,555.09/x
  3. Step 3: Cross multiply
    13,414.82x = 20,122.22 × 3,555.09
  4. Step 4: Simplify right side
    13,414.82x = 71,536,311.99
  5. Step 5: Solve for x
    x = 71,536,311.99/13,414.82
  6. Step 6: Final answer
    x = 5,332.64

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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.