Home / 8,108.57-12,167.66-3,428.33

Finding the Fourth Proportional to 8,108.57, 12,167.66 and 3,428.33

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Solution

The fourth proportional to 8,108.57, 12,167.66 and 3,428.33 is: 5,144.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,108.57 : 12,167.66 = 3,428.33 : x
  2. Step 2: Convert to fraction form
    8,108.57/12,167.66 = 3,428.33/x
  3. Step 3: Cross multiply
    8,108.57x = 12,167.66 × 3,428.33
  4. Step 4: Simplify right side
    8,108.57x = 41,714,701.54
  5. Step 5: Solve for x
    x = 41,714,701.54/8,108.57
  6. Step 6: Final answer
    x = 5,144.52

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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.