Home / 11,972.21-17,958.31-5,400.27

Finding the Fourth Proportional to 11,972.21, 17,958.31 and 5,400.27

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Solution

The fourth proportional to 11,972.21, 17,958.31 and 5,400.27 is: 8,100.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,972.21 : 17,958.31 = 5,400.27 : x
  2. Step 2: Convert to fraction form
    11,972.21/17,958.31 = 5,400.27/x
  3. Step 3: Cross multiply
    11,972.21x = 17,958.31 × 5,400.27
  4. Step 4: Simplify right side
    11,972.21x = 96,979,709.24
  5. Step 5: Solve for x
    x = 96,979,709.24/11,972.21
  6. Step 6: Final answer
    x = 8,100.41

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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.