Home / 8,664.09-12,997.36-2,819.34

Finding the Fourth Proportional to 8,664.09, 12,997.36 and 2,819.34

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Solution

The fourth proportional to 8,664.09, 12,997.36 and 2,819.34 is: 4,229.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,664.09 : 12,997.36 = 2,819.34 : x
  2. Step 2: Convert to fraction form
    8,664.09/12,997.36 = 2,819.34/x
  3. Step 3: Cross multiply
    8,664.09x = 12,997.36 × 2,819.34
  4. Step 4: Simplify right side
    8,664.09x = 36,643,976.94
  5. Step 5: Solve for x
    x = 36,643,976.94/8,664.09
  6. Step 6: Final answer
    x = 4,229.41

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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.