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Finding the Fourth Proportional to 8,900.99, 13,351.43 and 3,634.88

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Solution

The fourth proportional to 8,900.99, 13,351.43 and 3,634.88 is: 5,452.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,900.99 : 13,351.43 = 3,634.88 : x
  2. Step 2: Convert to fraction form
    8,900.99/13,351.43 = 3,634.88/x
  3. Step 3: Cross multiply
    8,900.99x = 13,351.43 × 3,634.88
  4. Step 4: Simplify right side
    8,900.99x = 48,530,788.21
  5. Step 5: Solve for x
    x = 48,530,788.21/8,900.99
  6. Step 6: Final answer
    x = 5,452.29

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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.