Home / 8,183.49-12,270.31-3,679.72

Finding the Fourth Proportional to 8,183.49, 12,270.31 and 3,679.72

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Solution

The fourth proportional to 8,183.49, 12,270.31 and 3,679.72 is: 5,517.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,183.49 : 12,270.31 = 3,679.72 : x
  2. Step 2: Convert to fraction form
    8,183.49/12,270.31 = 3,679.72/x
  3. Step 3: Cross multiply
    8,183.49x = 12,270.31 × 3,679.72
  4. Step 4: Simplify right side
    8,183.49x = 45,151,286.71
  5. Step 5: Solve for x
    x = 45,151,286.71/8,183.49
  6. Step 6: Final answer
    x = 5,517.36

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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.