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Finding the Fourth Proportional to 8,762.53, 13,144.43 and 2,758.09

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Solution

The fourth proportional to 8,762.53, 13,144.43 and 2,758.09 is: 4,137.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,762.53 : 13,144.43 = 2,758.09 : x
  2. Step 2: Convert to fraction form
    8,762.53/13,144.43 = 2,758.09/x
  3. Step 3: Cross multiply
    8,762.53x = 13,144.43 × 2,758.09
  4. Step 4: Simplify right side
    8,762.53x = 36,253,520.94
  5. Step 5: Solve for x
    x = 36,253,520.94/8,762.53
  6. Step 6: Final answer
    x = 4,137.33

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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.