Home / 8,731.20-13,089.04-3,183.50

Finding the Fourth Proportional to 8,731.20, 13,089.04 and 3,183.50

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Solution

The fourth proportional to 8,731.20, 13,089.04 and 3,183.50 is: 4,772.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,731.20 : 13,089.04 = 3,183.50 : x
  2. Step 2: Convert to fraction form
    8,731.20/13,089.04 = 3,183.50/x
  3. Step 3: Cross multiply
    8,731.20x = 13,089.04 × 3,183.50
  4. Step 4: Simplify right side
    8,731.20x = 41,668,958.84
  5. Step 5: Solve for x
    x = 41,668,958.84/8,731.20
  6. Step 6: Final answer
    x = 4,772.42

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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.