Home / 8,255.82-12,382.40-2,709.05

Finding the Fourth Proportional to 8,255.82, 12,382.40 and 2,709.05

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Solution

The fourth proportional to 8,255.82, 12,382.40 and 2,709.05 is: 4,063.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,255.82 : 12,382.40 = 2,709.05 : x
  2. Step 2: Convert to fraction form
    8,255.82/12,382.40 = 2,709.05/x
  3. Step 3: Cross multiply
    8,255.82x = 12,382.40 × 2,709.05
  4. Step 4: Simplify right side
    8,255.82x = 33,544,485.58
  5. Step 5: Solve for x
    x = 33,544,485.58/8,255.82
  6. Step 6: Final answer
    x = 4,063.13

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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.