Home / 8,736.96-13,105.44-3,190.68

Finding the Fourth Proportional to 8,736.96, 13,105.44 and 3,190.68

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Solution

The fourth proportional to 8,736.96, 13,105.44 and 3,190.68 is: 4,786.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,736.96 : 13,105.44 = 3,190.68 : x
  2. Step 2: Convert to fraction form
    8,736.96/13,105.44 = 3,190.68/x
  3. Step 3: Cross multiply
    8,736.96x = 13,105.44 × 3,190.68
  4. Step 4: Simplify right side
    8,736.96x = 41,815,265.30
  5. Step 5: Solve for x
    x = 41,815,265.30/8,736.96
  6. Step 6: Final answer
    x = 4,786.02

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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.