Home / 8,131.28-12,197.97-2,208.29

Finding the Fourth Proportional to 8,131.28, 12,197.97 and 2,208.29

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Solution

The fourth proportional to 8,131.28, 12,197.97 and 2,208.29 is: 3,312.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,131.28 : 12,197.97 = 2,208.29 : x
  2. Step 2: Convert to fraction form
    8,131.28/12,197.97 = 2,208.29/x
  3. Step 3: Cross multiply
    8,131.28x = 12,197.97 × 2,208.29
  4. Step 4: Simplify right side
    8,131.28x = 26,936,594.18
  5. Step 5: Solve for x
    x = 26,936,594.18/8,131.28
  6. Step 6: Final answer
    x = 3,312.71

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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.