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Finding the Fourth Proportional to 8,168.49, 12,256.79 and 3,238.02

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Solution

The fourth proportional to 8,168.49, 12,256.79 and 3,238.02 is: 4,858.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,168.49 : 12,256.79 = 3,238.02 : x
  2. Step 2: Convert to fraction form
    8,168.49/12,256.79 = 3,238.02/x
  3. Step 3: Cross multiply
    8,168.49x = 12,256.79 × 3,238.02
  4. Step 4: Simplify right side
    8,168.49x = 39,687,731.16
  5. Step 5: Solve for x
    x = 39,687,731.16/8,168.49
  6. Step 6: Final answer
    x = 4,858.64

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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.