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Finding the Fourth Proportional to 12,647.76, 18,962.20 and 6,067.68

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Solution

The fourth proportional to 12,647.76, 18,962.20 and 6,067.68 is: 9,096.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,647.76 : 18,962.20 = 6,067.68 : x
  2. Step 2: Convert to fraction form
    12,647.76/18,962.20 = 6,067.68/x
  3. Step 3: Cross multiply
    12,647.76x = 18,962.20 × 6,067.68
  4. Step 4: Simplify right side
    12,647.76x = 115,056,561.70
  5. Step 5: Solve for x
    x = 115,056,561.70/12,647.76
  6. Step 6: Final answer
    x = 9,096.99

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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.