Home / 7,183.25-9,912.88-3,996.74

Finding the Fourth Proportional to 7,183.25, 9,912.88 and 3,996.74

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Solution

The fourth proportional to 7,183.25, 9,912.88 and 3,996.74 is: 5,515.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,183.25 : 9,912.88 = 3,996.74 : x
  2. Step 2: Convert to fraction form
    7,183.25/9,912.88 = 3,996.74/x
  3. Step 3: Cross multiply
    7,183.25x = 9,912.88 × 3,996.74
  4. Step 4: Simplify right side
    7,183.25x = 39,619,233.79
  5. Step 5: Solve for x
    x = 39,619,233.79/7,183.25
  6. Step 6: Final answer
    x = 5,515.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.