Home / 8,255.32-12,378.92-2,707.64

Finding the Fourth Proportional to 8,255.32, 12,378.92 and 2,707.64

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Solution

The fourth proportional to 8,255.32, 12,378.92 and 2,707.64 is: 4,060.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,255.32 : 12,378.92 = 2,707.64 : x
  2. Step 2: Convert to fraction form
    8,255.32/12,378.92 = 2,707.64/x
  3. Step 3: Cross multiply
    8,255.32x = 12,378.92 × 2,707.64
  4. Step 4: Simplify right side
    8,255.32x = 33,517,658.95
  5. Step 5: Solve for x
    x = 33,517,658.95/8,255.32
  6. Step 6: Final answer
    x = 4,060.13

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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.