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Finding the Fourth Proportional to 11,217.65, 15,480.86 and 6,743.48

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Solution

The fourth proportional to 11,217.65, 15,480.86 and 6,743.48 is: 9,306.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,217.65 : 15,480.86 = 6,743.48 : x
  2. Step 2: Convert to fraction form
    11,217.65/15,480.86 = 6,743.48/x
  3. Step 3: Cross multiply
    11,217.65x = 15,480.86 × 6,743.48
  4. Step 4: Simplify right side
    11,217.65x = 104,394,758.67
  5. Step 5: Solve for x
    x = 104,394,758.67/11,217.65
  6. Step 6: Final answer
    x = 9,306.30

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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.