Home / 8,170.11-12,256.44-3,239.64

Finding the Fourth Proportional to 8,170.11, 12,256.44 and 3,239.64

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Solution

The fourth proportional to 8,170.11, 12,256.44 and 3,239.64 is: 4,859.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,170.11 : 12,256.44 = 3,239.64 : x
  2. Step 2: Convert to fraction form
    8,170.11/12,256.44 = 3,239.64/x
  3. Step 3: Cross multiply
    8,170.11x = 12,256.44 × 3,239.64
  4. Step 4: Simplify right side
    8,170.11x = 39,706,453.28
  5. Step 5: Solve for x
    x = 39,706,453.28/8,170.11
  6. Step 6: Final answer
    x = 4,859.97

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1.5x scale

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.