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Finding the Fourth Proportional to 7,171.50, 9,896.67 and 4,027.69

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Solution

The fourth proportional to 7,171.50, 9,896.67 and 4,027.69 is: 5,558.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,171.50 : 9,896.67 = 4,027.69 : x
  2. Step 2: Convert to fraction form
    7,171.50/9,896.67 = 4,027.69/x
  3. Step 3: Cross multiply
    7,171.50x = 9,896.67 × 4,027.69
  4. Step 4: Simplify right side
    7,171.50x = 39,860,718.79
  5. Step 5: Solve for x
    x = 39,860,718.79/7,171.50
  6. Step 6: Final answer
    x = 5,558.21

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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.