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Finding the Fourth Proportional to 12,151.11, 18,226.85 and 4,253.34

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Solution

The fourth proportional to 12,151.11, 18,226.85 and 4,253.34 is: 6,380.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,151.11 : 18,226.85 = 4,253.34 : x
  2. Step 2: Convert to fraction form
    12,151.11/18,226.85 = 4,253.34/x
  3. Step 3: Cross multiply
    12,151.11x = 18,226.85 × 4,253.34
  4. Step 4: Simplify right side
    12,151.11x = 77,524,968.91
  5. Step 5: Solve for x
    x = 77,524,968.91/12,151.11
  6. Step 6: Final answer
    x = 6,380.07

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.