Home / 8,171.25-11,270.22-5,187.96

Finding the Fourth Proportional to 8,171.25, 11,270.22 and 5,187.96

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Solution

The fourth proportional to 8,171.25, 11,270.22 and 5,187.96 is: 7,155.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,171.25 : 11,270.22 = 5,187.96 : x
  2. Step 2: Convert to fraction form
    8,171.25/11,270.22 = 5,187.96/x
  3. Step 3: Cross multiply
    8,171.25x = 11,270.22 × 5,187.96
  4. Step 4: Simplify right side
    8,171.25x = 58,469,450.55
  5. Step 5: Solve for x
    x = 58,469,450.55/8,171.25
  6. Step 6: Final answer
    x = 7,155.51

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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.