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Finding the Fourth Proportional to 8,179.70, 12,267.72 and 3,248.01

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Solution

The fourth proportional to 8,179.70, 12,267.72 and 3,248.01 is: 4,871.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,179.70 : 12,267.72 = 3,248.01 : x
  2. Step 2: Convert to fraction form
    8,179.70/12,267.72 = 3,248.01/x
  3. Step 3: Cross multiply
    8,179.70x = 12,267.72 × 3,248.01
  4. Step 4: Simplify right side
    8,179.70x = 39,845,677.24
  5. Step 5: Solve for x
    x = 39,845,677.24/8,179.70
  6. Step 6: Final answer
    x = 4,871.29

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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.