Home / 8,664.96-12,991.68-2,819.52

Finding the Fourth Proportional to 8,664.96, 12,991.68 and 2,819.52

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Solution

The fourth proportional to 8,664.96, 12,991.68 and 2,819.52 is: 4,227.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,664.96 : 12,991.68 = 2,819.52 : x
  2. Step 2: Convert to fraction form
    8,664.96/12,991.68 = 2,819.52/x
  3. Step 3: Cross multiply
    8,664.96x = 12,991.68 × 2,819.52
  4. Step 4: Simplify right side
    8,664.96x = 36,630,301.59
  5. Step 5: Solve for x
    x = 36,630,301.59/8,664.96
  6. Step 6: Final answer
    x = 4,227.41

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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.