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Finding the Fourth Proportional to 8,763.75, 13,147.79 and 2,607.75

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Solution

The fourth proportional to 8,763.75, 13,147.79 and 2,607.75 is: 3,912.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,763.75 : 13,147.79 = 2,607.75 : x
  2. Step 2: Convert to fraction form
    8,763.75/13,147.79 = 2,607.75/x
  3. Step 3: Cross multiply
    8,763.75x = 13,147.79 × 2,607.75
  4. Step 4: Simplify right side
    8,763.75x = 34,286,136.33
  5. Step 5: Solve for x
    x = 34,286,136.33/8,763.75
  6. Step 6: Final answer
    x = 3,912.27

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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.