Home / 8,155.49-12,234.11-2,606.85

Finding the Fourth Proportional to 8,155.49, 12,234.11 and 2,606.85

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Solution

The fourth proportional to 8,155.49, 12,234.11 and 2,606.85 is: 3,910.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,155.49 : 12,234.11 = 2,606.85 : x
  2. Step 2: Convert to fraction form
    8,155.49/12,234.11 = 2,606.85/x
  3. Step 3: Cross multiply
    8,155.49x = 12,234.11 × 2,606.85
  4. Step 4: Simplify right side
    8,155.49x = 31,892,476.62
  5. Step 5: Solve for x
    x = 31,892,476.62/8,155.49
  6. Step 6: Final answer
    x = 3,910.56

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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.