Home / 8,128.28-11,217.22-4,591.49

Finding the Fourth Proportional to 8,128.28, 11,217.22 and 4,591.49

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Solution

The fourth proportional to 8,128.28, 11,217.22 and 4,591.49 is: 6,336.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,128.28 : 11,217.22 = 4,591.49 : x
  2. Step 2: Convert to fraction form
    8,128.28/11,217.22 = 4,591.49/x
  3. Step 3: Cross multiply
    8,128.28x = 11,217.22 × 4,591.49
  4. Step 4: Simplify right side
    8,128.28x = 51,503,685.89
  5. Step 5: Solve for x
    x = 51,503,685.89/8,128.28
  6. Step 6: Final answer
    x = 6,336.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.