Home / 8,112.96-12,170.18-2,269.55

Finding the Fourth Proportional to 8,112.96, 12,170.18 and 2,269.55

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Solution

The fourth proportional to 8,112.96, 12,170.18 and 2,269.55 is: 3,404.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,112.96 : 12,170.18 = 2,269.55 : x
  2. Step 2: Convert to fraction form
    8,112.96/12,170.18 = 2,269.55/x
  3. Step 3: Cross multiply
    8,112.96x = 12,170.18 × 2,269.55
  4. Step 4: Simplify right side
    8,112.96x = 27,620,832.02
  5. Step 5: Solve for x
    x = 27,620,832.02/8,112.96
  6. Step 6: Final answer
    x = 3,404.53

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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.