Home / 8,114.22-12,170.23-3,187.33

Finding the Fourth Proportional to 8,114.22, 12,170.23 and 3,187.33

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Solution

The fourth proportional to 8,114.22, 12,170.23 and 3,187.33 is: 4,780.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,114.22 : 12,170.23 = 3,187.33 : x
  2. Step 2: Convert to fraction form
    8,114.22/12,170.23 = 3,187.33/x
  3. Step 3: Cross multiply
    8,114.22x = 12,170.23 × 3,187.33
  4. Step 4: Simplify right side
    8,114.22x = 38,790,500.79
  5. Step 5: Solve for x
    x = 38,790,500.79/8,114.22
  6. Step 6: Final answer
    x = 4,780.56

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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.