Home / 13,519.22-20,278.76-3,658.46

Finding the Fourth Proportional to 13,519.22, 20,278.76 and 3,658.46

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Solution

The fourth proportional to 13,519.22, 20,278.76 and 3,658.46 is: 5,487.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,519.22 : 20,278.76 = 3,658.46 : x
  2. Step 2: Convert to fraction form
    13,519.22/20,278.76 = 3,658.46/x
  3. Step 3: Cross multiply
    13,519.22x = 20,278.76 × 3,658.46
  4. Step 4: Simplify right side
    13,519.22x = 74,188,912.62
  5. Step 5: Solve for x
    x = 74,188,912.62/13,519.22
  6. Step 6: Final answer
    x = 5,487.66

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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.