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Finding the Fourth Proportional to 11,003.72, 16,505.39 and 4,429.73

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Solution

The fourth proportional to 11,003.72, 16,505.39 and 4,429.73 is: 6,644.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,003.72 : 16,505.39 = 4,429.73 : x
  2. Step 2: Convert to fraction form
    11,003.72/16,505.39 = 4,429.73/x
  3. Step 3: Cross multiply
    11,003.72x = 16,505.39 × 4,429.73
  4. Step 4: Simplify right side
    11,003.72x = 73,114,473.58
  5. Step 5: Solve for x
    x = 73,114,473.58/11,003.72
  6. Step 6: Final answer
    x = 6,644.53

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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.