Home / 8,115.72-12,173.12-2,493.38

Finding the Fourth Proportional to 8,115.72, 12,173.12 and 2,493.38

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Solution

The fourth proportional to 8,115.72, 12,173.12 and 2,493.38 is: 3,739.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,115.72 : 12,173.12 = 2,493.38 : x
  2. Step 2: Convert to fraction form
    8,115.72/12,173.12 = 2,493.38/x
  3. Step 3: Cross multiply
    8,115.72x = 12,173.12 × 2,493.38
  4. Step 4: Simplify right side
    8,115.72x = 30,352,213.95
  5. Step 5: Solve for x
    x = 30,352,213.95/8,115.72
  6. Step 6: Final answer
    x = 3,739.93

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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.