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Finding the Fourth Proportional to 12,217.52, 16,860.18 and 6,628.52

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Solution

The fourth proportional to 12,217.52, 16,860.18 and 6,628.52 is: 9,147.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,217.52 : 16,860.18 = 6,628.52 : x
  2. Step 2: Convert to fraction form
    12,217.52/16,860.18 = 6,628.52/x
  3. Step 3: Cross multiply
    12,217.52x = 16,860.18 × 6,628.52
  4. Step 4: Simplify right side
    12,217.52x = 111,758,040.33
  5. Step 5: Solve for x
    x = 111,758,040.33/12,217.52
  6. Step 6: Final answer
    x = 9,147.36

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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.