Home / 8,769.60-13,150.56-3,221.16

Finding the Fourth Proportional to 8,769.60, 13,150.56 and 3,221.16

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Solution

The fourth proportional to 8,769.60, 13,150.56 and 3,221.16 is: 4,830.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,769.60 : 13,150.56 = 3,221.16 : x
  2. Step 2: Convert to fraction form
    8,769.60/13,150.56 = 3,221.16/x
  3. Step 3: Cross multiply
    8,769.60x = 13,150.56 × 3,221.16
  4. Step 4: Simplify right side
    8,769.60x = 42,360,057.85
  5. Step 5: Solve for x
    x = 42,360,057.85/8,769.60
  6. Step 6: Final answer
    x = 4,830.33

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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.