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Finding the Fourth Proportional to 8,764, 13,146.09 and 2,608

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Solution

The fourth proportional to 8,764, 13,146.09 and 2,608 is: 3,912.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,764 : 13,146.09 = 2,608 : x
  2. Step 2: Convert to fraction form
    8,764/13,146.09 = 2,608/x
  3. Step 3: Cross multiply
    8,764x = 13,146.09 × 2,608
  4. Step 4: Simplify right side
    8,764x = 34,285,002.72
  5. Step 5: Solve for x
    x = 34,285,002.72/8,764
  6. Step 6: Final answer
    x = 3,912.03

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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.