Home / 8,778.24-13,169.28-3,231.60

Finding the Fourth Proportional to 8,778.24, 13,169.28 and 3,231.60

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Solution

The fourth proportional to 8,778.24, 13,169.28 and 3,231.60 is: 4,848.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,778.24 : 13,169.28 = 3,231.60 : x
  2. Step 2: Convert to fraction form
    8,778.24/13,169.28 = 3,231.60/x
  3. Step 3: Cross multiply
    8,778.24x = 13,169.28 × 3,231.60
  4. Step 4: Simplify right side
    8,778.24x = 42,557,845.25
  5. Step 5: Solve for x
    x = 42,557,845.25/8,778.24
  6. Step 6: Final answer
    x = 4,848.11

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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.