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Finding the Fourth Proportional to 8,727.88, 13,083.88 and 3,179.96

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Solution

The fourth proportional to 8,727.88, 13,083.88 and 3,179.96 is: 4,767.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,727.88 : 13,083.88 = 3,179.96 : x
  2. Step 2: Convert to fraction form
    8,727.88/13,083.88 = 3,179.96/x
  3. Step 3: Cross multiply
    8,727.88x = 13,083.88 × 3,179.96
  4. Step 4: Simplify right side
    8,727.88x = 41,606,199.15
  5. Step 5: Solve for x
    x = 41,606,199.15/8,727.88
  6. Step 6: Final answer
    x = 4,767.05

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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.