Home / 9,278.97-12,801.76-5,245.30

Finding the Fourth Proportional to 9,278.97, 12,801.76 and 5,245.30

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Solution

The fourth proportional to 9,278.97, 12,801.76 and 5,245.30 is: 7,236.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,278.97 : 12,801.76 = 5,245.30 : x
  2. Step 2: Convert to fraction form
    9,278.97/12,801.76 = 5,245.30/x
  3. Step 3: Cross multiply
    9,278.97x = 12,801.76 × 5,245.30
  4. Step 4: Simplify right side
    9,278.97x = 67,149,071.73
  5. Step 5: Solve for x
    x = 67,149,071.73/9,278.97
  6. Step 6: Final answer
    x = 7,236.69

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Similar ratio
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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.