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Finding the Fourth Proportional to 8,675.60, 13,012.44 and 2,519.60

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Solution

The fourth proportional to 8,675.60, 13,012.44 and 2,519.60 is: 3,779.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,675.60 : 13,012.44 = 2,519.60 : x
  2. Step 2: Convert to fraction form
    8,675.60/13,012.44 = 2,519.60/x
  3. Step 3: Cross multiply
    8,675.60x = 13,012.44 × 2,519.60
  4. Step 4: Simplify right side
    8,675.60x = 32,786,143.82
  5. Step 5: Solve for x
    x = 32,786,143.82/8,675.60
  6. Step 6: Final answer
    x = 3,779.12

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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.