Home / 8,664.97-12,996.10-2,821.54

Finding the Fourth Proportional to 8,664.97, 12,996.10 and 2,821.54

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Solution

The fourth proportional to 8,664.97, 12,996.10 and 2,821.54 is: 4,231.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,664.97 : 12,996.10 = 2,821.54 : x
  2. Step 2: Convert to fraction form
    8,664.97/12,996.10 = 2,821.54/x
  3. Step 3: Cross multiply
    8,664.97x = 12,996.10 × 2,821.54
  4. Step 4: Simplify right side
    8,664.97x = 36,669,015.99
  5. Step 5: Solve for x
    x = 36,669,015.99/8,664.97
  6. Step 6: Final answer
    x = 4,231.87

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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.