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Finding the Fourth Proportional to 8,398.44, 12,593.25 and 3,133.80

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Solution

The fourth proportional to 8,398.44, 12,593.25 and 3,133.80 is: 4,699.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,398.44 : 12,593.25 = 3,133.80 : x
  2. Step 2: Convert to fraction form
    8,398.44/12,593.25 = 3,133.80/x
  3. Step 3: Cross multiply
    8,398.44x = 12,593.25 × 3,133.80
  4. Step 4: Simplify right side
    8,398.44x = 39,464,726.85
  5. Step 5: Solve for x
    x = 39,464,726.85/8,398.44
  6. Step 6: Final answer
    x = 4,699.05

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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.