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Finding the Fourth Proportional to 8,682.13, 12,001.02 and 7,993.21

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Solution

The fourth proportional to 8,682.13, 12,001.02 and 7,993.21 is: 11,048.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,682.13 : 12,001.02 = 7,993.21 : x
  2. Step 2: Convert to fraction form
    8,682.13/12,001.02 = 7,993.21/x
  3. Step 3: Cross multiply
    8,682.13x = 12,001.02 × 7,993.21
  4. Step 4: Simplify right side
    8,682.13x = 95,926,673.07
  5. Step 5: Solve for x
    x = 95,926,673.07/8,682.13
  6. Step 6: Final answer
    x = 11,048.75

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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.