Home / 9,270.40-13,905.60-8,249.80

Finding the Fourth Proportional to 9,270.40, 13,905.60 and 8,249.80

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Solution

The fourth proportional to 9,270.40, 13,905.60 and 8,249.80 is: 12,374.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,270.40 : 13,905.60 = 8,249.80 : x
  2. Step 2: Convert to fraction form
    9,270.40/13,905.60 = 8,249.80/x
  3. Step 3: Cross multiply
    9,270.40x = 13,905.60 × 8,249.80
  4. Step 4: Simplify right side
    9,270.40x = 114,718,418.88
  5. Step 5: Solve for x
    x = 114,718,418.88/9,270.40
  6. Step 6: Final answer
    x = 12,374.70

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.