Home / 8,121.52-12,183.55-3,441.54

Finding the Fourth Proportional to 8,121.52, 12,183.55 and 3,441.54

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Solution

The fourth proportional to 8,121.52, 12,183.55 and 3,441.54 is: 5,162.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,121.52 : 12,183.55 = 3,441.54 : x
  2. Step 2: Convert to fraction form
    8,121.52/12,183.55 = 3,441.54/x
  3. Step 3: Cross multiply
    8,121.52x = 12,183.55 × 3,441.54
  4. Step 4: Simplify right side
    8,121.52x = 41,930,174.67
  5. Step 5: Solve for x
    x = 41,930,174.67/8,121.52
  6. Step 6: Final answer
    x = 5,162.85

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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.