Home / 11,989.62-17,982.61-3,225.22

Finding the Fourth Proportional to 11,989.62, 17,982.61 and 3,225.22

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Solution

The fourth proportional to 11,989.62, 17,982.61 and 3,225.22 is: 4,837.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,989.62 : 17,982.61 = 3,225.22 : x
  2. Step 2: Convert to fraction form
    11,989.62/17,982.61 = 3,225.22/x
  3. Step 3: Cross multiply
    11,989.62x = 17,982.61 × 3,225.22
  4. Step 4: Simplify right side
    11,989.62x = 57,997,820.40
  5. Step 5: Solve for x
    x = 57,997,820.40/11,989.62
  6. Step 6: Final answer
    x = 4,837.34

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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.