Home / 8,275.97-11,422.37-4,920.75

Finding the Fourth Proportional to 8,275.97, 11,422.37 and 4,920.75

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Solution

The fourth proportional to 8,275.97, 11,422.37 and 4,920.75 is: 6,791.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,275.97 : 11,422.37 = 4,920.75 : x
  2. Step 2: Convert to fraction form
    8,275.97/11,422.37 = 4,920.75/x
  3. Step 3: Cross multiply
    8,275.97x = 11,422.37 × 4,920.75
  4. Step 4: Simplify right side
    8,275.97x = 56,206,611.80
  5. Step 5: Solve for x
    x = 56,206,611.80/8,275.97
  6. Step 6: Final answer
    x = 6,791.54

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Half scale
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Double scale
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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.