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Finding the Fourth Proportional to 8,672.85, 13,013.31 and 2,750.67

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Solution

The fourth proportional to 8,672.85, 13,013.31 and 2,750.67 is: 4,127.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,672.85 : 13,013.31 = 2,750.67 : x
  2. Step 2: Convert to fraction form
    8,672.85/13,013.31 = 2,750.67/x
  3. Step 3: Cross multiply
    8,672.85x = 13,013.31 × 2,750.67
  4. Step 4: Simplify right side
    8,672.85x = 35,795,321.42
  5. Step 5: Solve for x
    x = 35,795,321.42/8,672.85
  6. Step 6: Final answer
    x = 4,127.28

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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.