Home / 11,989.32-17,991.99-4,198.14

Finding the Fourth Proportional to 11,989.32, 17,991.99 and 4,198.14

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Solution

The fourth proportional to 11,989.32, 17,991.99 and 4,198.14 is: 6,300.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,989.32 : 17,991.99 = 4,198.14 : x
  2. Step 2: Convert to fraction form
    11,989.32/17,991.99 = 4,198.14/x
  3. Step 3: Cross multiply
    11,989.32x = 17,991.99 × 4,198.14
  4. Step 4: Simplify right side
    11,989.32x = 75,532,892.90
  5. Step 5: Solve for x
    x = 75,532,892.90/11,989.32
  6. Step 6: Final answer
    x = 6,300.01

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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.