Home / 8,121.18-12,183.24-2,498.74

Finding the Fourth Proportional to 8,121.18, 12,183.24 and 2,498.74

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Solution

The fourth proportional to 8,121.18, 12,183.24 and 2,498.74 is: 3,748.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,121.18 : 12,183.24 = 2,498.74 : x
  2. Step 2: Convert to fraction form
    8,121.18/12,183.24 = 2,498.74/x
  3. Step 3: Cross multiply
    8,121.18x = 12,183.24 × 2,498.74
  4. Step 4: Simplify right side
    8,121.18x = 30,442,749.12
  5. Step 5: Solve for x
    x = 30,442,749.12/8,121.18
  6. Step 6: Final answer
    x = 3,748.56

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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.