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Finding the Fourth Proportional to 8,675.50, 13,013.61 and 2,519.50

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Solution

The fourth proportional to 8,675.50, 13,013.61 and 2,519.50 is: 3,779.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,675.50 : 13,013.61 = 2,519.50 : x
  2. Step 2: Convert to fraction form
    8,675.50/13,013.61 = 2,519.50/x
  3. Step 3: Cross multiply
    8,675.50x = 13,013.61 × 2,519.50
  4. Step 4: Simplify right side
    8,675.50x = 32,787,790.40
  5. Step 5: Solve for x
    x = 32,787,790.40/8,675.50
  6. Step 6: Final answer
    x = 3,779.35

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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.