Home / 13,936.70-19,231.38-8,270.48

Finding the Fourth Proportional to 13,936.70, 19,231.38 and 8,270.48

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Solution

The fourth proportional to 13,936.70, 19,231.38 and 8,270.48 is: 11,412.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,936.70 : 19,231.38 = 8,270.48 : x
  2. Step 2: Convert to fraction form
    13,936.70/19,231.38 = 8,270.48/x
  3. Step 3: Cross multiply
    13,936.70x = 19,231.38 × 8,270.48
  4. Step 4: Simplify right side
    13,936.70x = 159,052,743.66
  5. Step 5: Solve for x
    x = 159,052,743.66/13,936.70
  6. Step 6: Final answer
    x = 11,412.51

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.