Home / 8,091.16-12,135.92-2,825.66

Finding the Fourth Proportional to 8,091.16, 12,135.92 and 2,825.66

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Solution

The fourth proportional to 8,091.16, 12,135.92 and 2,825.66 is: 4,238.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,091.16 : 12,135.92 = 2,825.66 : x
  2. Step 2: Convert to fraction form
    8,091.16/12,135.92 = 2,825.66/x
  3. Step 3: Cross multiply
    8,091.16x = 12,135.92 × 2,825.66
  4. Step 4: Simplify right side
    8,091.16x = 34,291,999.92
  5. Step 5: Solve for x
    x = 34,291,999.92/8,091.16
  6. Step 6: Final answer
    x = 4,238.21

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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.