Home / 10,613.38-15,920.30-3,217.83

Finding the Fourth Proportional to 10,613.38, 15,920.30 and 3,217.83

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Solution

The fourth proportional to 10,613.38, 15,920.30 and 3,217.83 is: 4,826.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,613.38 : 15,920.30 = 3,217.83 : x
  2. Step 2: Convert to fraction form
    10,613.38/15,920.30 = 3,217.83/x
  3. Step 3: Cross multiply
    10,613.38x = 15,920.30 × 3,217.83
  4. Step 4: Simplify right side
    10,613.38x = 51,228,749.19
  5. Step 5: Solve for x
    x = 51,228,749.19/10,613.38
  6. Step 6: Final answer
    x = 4,826.81

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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.