Home / 11,998.21-17,996.67-3,678.25

Finding the Fourth Proportional to 11,998.21, 17,996.67 and 3,678.25

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Solution

The fourth proportional to 11,998.21, 17,996.67 and 3,678.25 is: 5,517.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,998.21 : 17,996.67 = 3,678.25 : x
  2. Step 2: Convert to fraction form
    11,998.21/17,996.67 = 3,678.25/x
  3. Step 3: Cross multiply
    11,998.21x = 17,996.67 × 3,678.25
  4. Step 4: Simplify right side
    11,998.21x = 66,196,251.43
  5. Step 5: Solve for x
    x = 66,196,251.43/11,998.21
  6. Step 6: Final answer
    x = 5,517.18

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1.5x scale

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.