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Finding the Fourth Proportional to 12,023.06, 18,034.58 and 7,889.22

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Solution

The fourth proportional to 12,023.06, 18,034.58 and 7,889.22 is: 11,833.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,023.06 : 18,034.58 = 7,889.22 : x
  2. Step 2: Convert to fraction form
    12,023.06/18,034.58 = 7,889.22/x
  3. Step 3: Cross multiply
    12,023.06x = 18,034.58 × 7,889.22
  4. Step 4: Simplify right side
    12,023.06x = 142,278,788.95
  5. Step 5: Solve for x
    x = 142,278,788.95/12,023.06
  6. Step 6: Final answer
    x = 11,833.83

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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.