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Finding the Fourth Proportional to 11,553.44, 15,940.12 and 7,072.52

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Solution

The fourth proportional to 11,553.44, 15,940.12 and 7,072.52 is: 9,757.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,553.44 : 15,940.12 = 7,072.52 : x
  2. Step 2: Convert to fraction form
    11,553.44/15,940.12 = 7,072.52/x
  3. Step 3: Cross multiply
    11,553.44x = 15,940.12 × 7,072.52
  4. Step 4: Simplify right side
    11,553.44x = 112,736,817.50
  5. Step 5: Solve for x
    x = 112,736,817.50/11,553.44
  6. Step 6: Final answer
    x = 9,757.86

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.