Home / 8,253.72-11,291.79-8,218.44

Finding the Fourth Proportional to 8,253.72, 11,291.79 and 8,218.44

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Solution

The fourth proportional to 8,253.72, 11,291.79 and 8,218.44 is: 11,243.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,253.72 : 11,291.79 = 8,218.44 : x
  2. Step 2: Convert to fraction form
    8,253.72/11,291.79 = 8,218.44/x
  3. Step 3: Cross multiply
    8,253.72x = 11,291.79 × 8,218.44
  4. Step 4: Simplify right side
    8,253.72x = 92,800,898.61
  5. Step 5: Solve for x
    x = 92,800,898.61/8,253.72
  6. Step 6: Final answer
    x = 11,243.52

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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 (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.