Home / 8,306.29-12,456.23-3,239.85

Finding the Fourth Proportional to 8,306.29, 12,456.23 and 3,239.85

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Solution

The fourth proportional to 8,306.29, 12,456.23 and 3,239.85 is: 4,858.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,306.29 : 12,456.23 = 3,239.85 : x
  2. Step 2: Convert to fraction form
    8,306.29/12,456.23 = 3,239.85/x
  3. Step 3: Cross multiply
    8,306.29x = 12,456.23 × 3,239.85
  4. Step 4: Simplify right side
    8,306.29x = 40,356,347.28
  5. Step 5: Solve for x
    x = 40,356,347.28/8,306.29
  6. Step 6: Final answer
    x = 4,858.53

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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.