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Finding the Fourth Proportional to 8,408.99, 12,602.03 and 3,965.96

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Solution

The fourth proportional to 8,408.99, 12,602.03 and 3,965.96 is: 5,943.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,408.99 : 12,602.03 = 3,965.96 : x
  2. Step 2: Convert to fraction form
    8,408.99/12,602.03 = 3,965.96/x
  3. Step 3: Cross multiply
    8,408.99x = 12,602.03 × 3,965.96
  4. Step 4: Simplify right side
    8,408.99x = 49,979,147.28
  5. Step 5: Solve for x
    x = 49,979,147.28/8,408.99
  6. Step 6: Final answer
    x = 5,943.54

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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.