Home / 8,183.38-12,281.17-3,186.54

Finding the Fourth Proportional to 8,183.38, 12,281.17 and 3,186.54

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Solution

The fourth proportional to 8,183.38, 12,281.17 and 3,186.54 is: 4,782.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,183.38 : 12,281.17 = 3,186.54 : x
  2. Step 2: Convert to fraction form
    8,183.38/12,281.17 = 3,186.54/x
  3. Step 3: Cross multiply
    8,183.38x = 12,281.17 × 3,186.54
  4. Step 4: Simplify right side
    8,183.38x = 39,134,437.46
  5. Step 5: Solve for x
    x = 39,134,437.46/8,183.38
  6. Step 6: Final answer
    x = 4,782.19

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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.