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Finding the Fourth Proportional to 8,687.88, 13,029.26 and 3,756.33

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Solution

The fourth proportional to 8,687.88, 13,029.26 and 3,756.33 is: 5,633.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,687.88 : 13,029.26 = 3,756.33 : x
  2. Step 2: Convert to fraction form
    8,687.88/13,029.26 = 3,756.33/x
  3. Step 3: Cross multiply
    8,687.88x = 13,029.26 × 3,756.33
  4. Step 4: Simplify right side
    8,687.88x = 48,942,181.43
  5. Step 5: Solve for x
    x = 48,942,181.43/8,687.88
  6. Step 6: Final answer
    x = 5,633.39

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.