Home / 11,331.77-17,005.41-3,936.20

Finding the Fourth Proportional to 11,331.77, 17,005.41 and 3,936.20

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Solution

The fourth proportional to 11,331.77, 17,005.41 and 3,936.20 is: 5,906.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,331.77 : 17,005.41 = 3,936.20 : x
  2. Step 2: Convert to fraction form
    11,331.77/17,005.41 = 3,936.20/x
  3. Step 3: Cross multiply
    11,331.77x = 17,005.41 × 3,936.20
  4. Step 4: Simplify right side
    11,331.77x = 66,936,609.81
  5. Step 5: Solve for x
    x = 66,936,609.81/11,331.77
  6. Step 6: Final answer
    x = 5,906.99

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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.