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Finding the Fourth Proportional to 8,801.99, 13,202.98 and 8,218.79

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Solution

The fourth proportional to 8,801.99, 13,202.98 and 8,218.79 is: 12,328.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,801.99 : 13,202.98 = 8,218.79 : x
  2. Step 2: Convert to fraction form
    8,801.99/13,202.98 = 8,218.79/x
  3. Step 3: Cross multiply
    8,801.99x = 13,202.98 × 8,218.79
  4. Step 4: Simplify right side
    8,801.99x = 108,512,519.99
  5. Step 5: Solve for x
    x = 108,512,519.99/8,801.99
  6. Step 6: Final answer
    x = 12,328.18

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Double scale
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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.