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Finding the Fourth Proportional to 8,650.99, 12,976.50 and 4,950.65

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Solution

The fourth proportional to 8,650.99, 12,976.50 and 4,950.65 is: 7,425.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,650.99 : 12,976.50 = 4,950.65 : x
  2. Step 2: Convert to fraction form
    8,650.99/12,976.50 = 4,950.65/x
  3. Step 3: Cross multiply
    8,650.99x = 12,976.50 × 4,950.65
  4. Step 4: Simplify right side
    8,650.99x = 64,242,160.73
  5. Step 5: Solve for x
    x = 64,242,160.73/8,650.99
  6. Step 6: Final answer
    x = 7,425.99

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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.