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Finding the Fourth Proportional to 8,805.81, 13,213.02 and 3,874.83

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Solution

The fourth proportional to 8,805.81, 13,213.02 and 3,874.83 is: 5,814.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,805.81 : 13,213.02 = 3,874.83 : x
  2. Step 2: Convert to fraction form
    8,805.81/13,213.02 = 3,874.83/x
  3. Step 3: Cross multiply
    8,805.81x = 13,213.02 × 3,874.83
  4. Step 4: Simplify right side
    8,805.81x = 51,198,229.63
  5. Step 5: Solve for x
    x = 51,198,229.63/8,805.81
  6. Step 6: Final answer
    x = 5,814.14

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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.