Home / 8,255.28-11,392.25-4,478.43

Finding the Fourth Proportional to 8,255.28, 11,392.25 and 4,478.43

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Solution

The fourth proportional to 8,255.28, 11,392.25 and 4,478.43 is: 6,180.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,255.28 : 11,392.25 = 4,478.43 : x
  2. Step 2: Convert to fraction form
    8,255.28/11,392.25 = 4,478.43/x
  3. Step 3: Cross multiply
    8,255.28x = 11,392.25 × 4,478.43
  4. Step 4: Simplify right side
    8,255.28x = 51,019,371.78
  5. Step 5: Solve for x
    x = 51,019,371.78/8,255.28
  6. Step 6: Final answer
    x = 6,180.21

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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.