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Finding the Fourth Proportional to 8,650.99, 12,977.11 and 3,104.38

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Solution

The fourth proportional to 8,650.99, 12,977.11 and 3,104.38 is: 4,656.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,650.99 : 12,977.11 = 3,104.38 : x
  2. Step 2: Convert to fraction form
    8,650.99/12,977.11 = 3,104.38/x
  3. Step 3: Cross multiply
    8,650.99x = 12,977.11 × 3,104.38
  4. Step 4: Simplify right side
    8,650.99x = 40,285,827.85
  5. Step 5: Solve for x
    x = 40,285,827.85/8,650.99
  6. Step 6: Final answer
    x = 4,656.79

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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.