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Finding the Fourth Proportional to 8,644.41, 12,965.67 and 2,799.45

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Solution

The fourth proportional to 8,644.41, 12,965.67 and 2,799.45 is: 4,198.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,644.41 : 12,965.67 = 2,799.45 : x
  2. Step 2: Convert to fraction form
    8,644.41/12,965.67 = 2,799.45/x
  3. Step 3: Cross multiply
    8,644.41x = 12,965.67 × 2,799.45
  4. Step 4: Simplify right side
    8,644.41x = 36,296,744.88
  5. Step 5: Solve for x
    x = 36,296,744.88/8,644.41
  6. Step 6: Final answer
    x = 4,198.87

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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.