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Finding the Fourth Proportional to 12,212.12, 18,301.44 and 8,045.84

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Solution

The fourth proportional to 12,212.12, 18,301.44 and 8,045.84 is: 12,057.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,212.12 : 18,301.44 = 8,045.84 : x
  2. Step 2: Convert to fraction form
    12,212.12/18,301.44 = 8,045.84/x
  3. Step 3: Cross multiply
    12,212.12x = 18,301.44 × 8,045.84
  4. Step 4: Simplify right side
    12,212.12x = 147,250,458.01
  5. Step 5: Solve for x
    x = 147,250,458.01/12,212.12
  6. Step 6: Final answer
    x = 12,057.73

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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.