Home / 8,255.42-12,385.00-2,708.64

Finding the Fourth Proportional to 8,255.42, 12,385.00 and 2,708.64

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Solution

The fourth proportional to 8,255.42, 12,385.00 and 2,708.64 is: 4,063.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,255.42 : 12,385.00 = 2,708.64 : x
  2. Step 2: Convert to fraction form
    8,255.42/12,385.00 = 2,708.64/x
  3. Step 3: Cross multiply
    8,255.42x = 12,385.00 × 2,708.64
  4. Step 4: Simplify right side
    8,255.42x = 33,546,509.79
  5. Step 5: Solve for x
    x = 33,546,509.79/8,255.42
  6. Step 6: Final answer
    x = 4,063.57

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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.