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Finding the Fourth Proportional to 7,351.11, 10,144.53 and 3,993.93

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Solution

The fourth proportional to 7,351.11, 10,144.53 and 3,993.93 is: 5,511.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,351.11 : 10,144.53 = 3,993.93 : x
  2. Step 2: Convert to fraction form
    7,351.11/10,144.53 = 3,993.93/x
  3. Step 3: Cross multiply
    7,351.11x = 10,144.53 × 3,993.93
  4. Step 4: Simplify right side
    7,351.11x = 40,516,542.70
  5. Step 5: Solve for x
    x = 40,516,542.70/7,351.11
  6. Step 6: Final answer
    x = 5,511.62

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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.