Home / 8,081.67-12,122.14-2,817.88

Finding the Fourth Proportional to 8,081.67, 12,122.14 and 2,817.88

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Solution

The fourth proportional to 8,081.67, 12,122.14 and 2,817.88 is: 4,226.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,081.67 : 12,122.14 = 2,817.88 : x
  2. Step 2: Convert to fraction form
    8,081.67/12,122.14 = 2,817.88/x
  3. Step 3: Cross multiply
    8,081.67x = 12,122.14 × 2,817.88
  4. Step 4: Simplify right side
    8,081.67x = 34,158,735.86
  5. Step 5: Solve for x
    x = 34,158,735.86/8,081.67
  6. Step 6: Final answer
    x = 4,226.69

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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.