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Finding the Fourth Proportional to 10,791.57, 16,188.80 and 3,770.54

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Solution

The fourth proportional to 10,791.57, 16,188.80 and 3,770.54 is: 5,656.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,791.57 : 16,188.80 = 3,770.54 : x
  2. Step 2: Convert to fraction form
    10,791.57/16,188.80 = 3,770.54/x
  3. Step 3: Cross multiply
    10,791.57x = 16,188.80 × 3,770.54
  4. Step 4: Simplify right side
    10,791.57x = 61,040,418.16
  5. Step 5: Solve for x
    x = 61,040,418.16/10,791.57
  6. Step 6: Final answer
    x = 5,656.31

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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.