Home / 8,577.12-12,866.43-3,381.78

Finding the Fourth Proportional to 8,577.12, 12,866.43 and 3,381.78

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Solution

The fourth proportional to 8,577.12, 12,866.43 and 3,381.78 is: 5,072.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,577.12 : 12,866.43 = 3,381.78 : x
  2. Step 2: Convert to fraction form
    8,577.12/12,866.43 = 3,381.78/x
  3. Step 3: Cross multiply
    8,577.12x = 12,866.43 × 3,381.78
  4. Step 4: Simplify right side
    8,577.12x = 43,511,435.65
  5. Step 5: Solve for x
    x = 43,511,435.65/8,577.12
  6. Step 6: Final answer
    x = 5,072.97

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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.