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Finding the Fourth Proportional to 17,640.75, 26,463.33 and 5,328.75

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Solution

The fourth proportional to 17,640.75, 26,463.33 and 5,328.75 is: 7,993.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,640.75 : 26,463.33 = 5,328.75 : x
  2. Step 2: Convert to fraction form
    17,640.75/26,463.33 = 5,328.75/x
  3. Step 3: Cross multiply
    17,640.75x = 26,463.33 × 5,328.75
  4. Step 4: Simplify right side
    17,640.75x = 141,016,469.74
  5. Step 5: Solve for x
    x = 141,016,469.74/17,640.75
  6. Step 6: Final answer
    x = 7,993.79

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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.