Home / 8,131.68-12,195.48-2,288.88

Finding the Fourth Proportional to 8,131.68, 12,195.48 and 2,288.88

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Solution

The fourth proportional to 8,131.68, 12,195.48 and 2,288.88 is: 3,432.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,131.68 : 12,195.48 = 2,288.88 : x
  2. Step 2: Convert to fraction form
    8,131.68/12,195.48 = 2,288.88/x
  3. Step 3: Cross multiply
    8,131.68x = 12,195.48 × 2,288.88
  4. Step 4: Simplify right side
    8,131.68x = 27,913,990.26
  5. Step 5: Solve for x
    x = 27,913,990.26/8,131.68
  6. Step 6: Final answer
    x = 3,432.75

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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.