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Finding the Fourth Proportional to 8,676.50, 13,015.11 and 2,520.50

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Solution

The fourth proportional to 8,676.50, 13,015.11 and 2,520.50 is: 3,780.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,676.50 : 13,015.11 = 2,520.50 : x
  2. Step 2: Convert to fraction form
    8,676.50/13,015.11 = 2,520.50/x
  3. Step 3: Cross multiply
    8,676.50x = 13,015.11 × 2,520.50
  4. Step 4: Simplify right side
    8,676.50x = 32,804,584.76
  5. Step 5: Solve for x
    x = 32,804,584.76/8,676.50
  6. Step 6: Final answer
    x = 3,780.85

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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.