Home / 13,231.28-19,846.86-3,997.28

Finding the Fourth Proportional to 13,231.28, 19,846.86 and 3,997.28

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Solution

The fourth proportional to 13,231.28, 19,846.86 and 3,997.28 is: 5,995.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,231.28 : 19,846.86 = 3,997.28 : x
  2. Step 2: Convert to fraction form
    13,231.28/19,846.86 = 3,997.28/x
  3. Step 3: Cross multiply
    13,231.28x = 19,846.86 × 3,997.28
  4. Step 4: Simplify right side
    13,231.28x = 79,333,456.54
  5. Step 5: Solve for x
    x = 79,333,456.54/13,231.28
  6. Step 6: Final answer
    x = 5,995.90

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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.