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Finding the Fourth Proportional to 8,072.66, 12,109.14 and 2,229.42

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Solution

The fourth proportional to 8,072.66, 12,109.14 and 2,229.42 is: 3,344.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,072.66 : 12,109.14 = 2,229.42 : x
  2. Step 2: Convert to fraction form
    8,072.66/12,109.14 = 2,229.42/x
  3. Step 3: Cross multiply
    8,072.66x = 12,109.14 × 2,229.42
  4. Step 4: Simplify right side
    8,072.66x = 26,996,347.75
  5. Step 5: Solve for x
    x = 26,996,347.75/8,072.66
  6. Step 6: Final answer
    x = 3,344.17

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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.