Home / 11,791.36-17,680.56-3,997.12

Finding the Fourth Proportional to 11,791.36, 17,680.56 and 3,997.12

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Solution

The fourth proportional to 11,791.36, 17,680.56 and 3,997.12 is: 5,993.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,791.36 : 17,680.56 = 3,997.12 : x
  2. Step 2: Convert to fraction form
    11,791.36/17,680.56 = 3,997.12/x
  3. Step 3: Cross multiply
    11,791.36x = 17,680.56 × 3,997.12
  4. Step 4: Simplify right side
    11,791.36x = 70,671,319.99
  5. Step 5: Solve for x
    x = 70,671,319.99/11,791.36
  6. Step 6: Final answer
    x = 5,993.48

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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.