Home / 13,519.23-20,279.85-3,658.29

Finding the Fourth Proportional to 13,519.23, 20,279.85 and 3,658.29

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Solution

The fourth proportional to 13,519.23, 20,279.85 and 3,658.29 is: 5,487.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,519.23 : 20,279.85 = 3,658.29 : x
  2. Step 2: Convert to fraction form
    13,519.23/20,279.85 = 3,658.29/x
  3. Step 3: Cross multiply
    13,519.23x = 20,279.85 × 3,658.29
  4. Step 4: Simplify right side
    13,519.23x = 74,189,572.46
  5. Step 5: Solve for x
    x = 74,189,572.46/13,519.23
  6. Step 6: Final answer
    x = 5,487.71

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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.