Home / 11,989.35-17,982.41-3,224.79

Finding the Fourth Proportional to 11,989.35, 17,982.41 and 3,224.79

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Solution

The fourth proportional to 11,989.35, 17,982.41 and 3,224.79 is: 4,836.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,989.35 : 17,982.41 = 3,224.79 : x
  2. Step 2: Convert to fraction form
    11,989.35/17,982.41 = 3,224.79/x
  3. Step 3: Cross multiply
    11,989.35x = 17,982.41 × 3,224.79
  4. Step 4: Simplify right side
    11,989.35x = 57,989,479.82
  5. Step 5: Solve for x
    x = 57,989,479.82/11,989.35
  6. Step 6: Final answer
    x = 4,836.75

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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.