Home / 8,257.28-11,395-4,480.43

Finding the Fourth Proportional to 8,257.28, 11,395 and 4,480.43

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Solution

The fourth proportional to 8,257.28, 11,395 and 4,480.43 is: 6,182.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,257.28 : 11,395 = 4,480.43 : x
  2. Step 2: Convert to fraction form
    8,257.28/11,395 = 4,480.43/x
  3. Step 3: Cross multiply
    8,257.28x = 11,395 × 4,480.43
  4. Step 4: Simplify right side
    8,257.28x = 51,054,499.85
  5. Step 5: Solve for x
    x = 51,054,499.85/8,257.28
  6. Step 6: Final answer
    x = 6,182.97

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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.