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Finding the Fourth Proportional to 12,443.24, 18,662.70 and 4,650.44

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Solution

The fourth proportional to 12,443.24, 18,662.70 and 4,650.44 is: 6,974.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,443.24 : 18,662.70 = 4,650.44 : x
  2. Step 2: Convert to fraction form
    12,443.24/18,662.70 = 4,650.44/x
  3. Step 3: Cross multiply
    12,443.24x = 18,662.70 × 4,650.44
  4. Step 4: Simplify right side
    12,443.24x = 86,789,766.59
  5. Step 5: Solve for x
    x = 86,789,766.59/12,443.24
  6. Step 6: Final answer
    x = 6,974.85

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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.