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Finding the Fourth Proportional to 12,255.52, 18,360.24 and 6,772

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Solution

The fourth proportional to 12,255.52, 18,360.24 and 6,772 is: 10,145.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,255.52 : 18,360.24 = 6,772 : x
  2. Step 2: Convert to fraction form
    12,255.52/18,360.24 = 6,772/x
  3. Step 3: Cross multiply
    12,255.52x = 18,360.24 × 6,772
  4. Step 4: Simplify right side
    12,255.52x = 124,335,545.28
  5. Step 5: Solve for x
    x = 124,335,545.28/12,255.52
  6. Step 6: Final answer
    x = 10,145.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.