Home / 8,131.32-12,195.90-2,288.43

Finding the Fourth Proportional to 8,131.32, 12,195.90 and 2,288.43

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Solution

The fourth proportional to 8,131.32, 12,195.90 and 2,288.43 is: 3,432.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,131.32 : 12,195.90 = 2,288.43 : x
  2. Step 2: Convert to fraction form
    8,131.32/12,195.90 = 2,288.43/x
  3. Step 3: Cross multiply
    8,131.32x = 12,195.90 × 2,288.43
  4. Step 4: Simplify right side
    8,131.32x = 27,909,463.44
  5. Step 5: Solve for x
    x = 27,909,463.44/8,131.32
  6. Step 6: Final answer
    x = 3,432.34

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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.