Home / 13,936.32-19,231.11-8,270.82

Finding the Fourth Proportional to 13,936.32, 19,231.11 and 8,270.82

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Solution

The fourth proportional to 13,936.32, 19,231.11 and 8,270.82 is: 11,413.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,936.32 : 19,231.11 = 8,270.82 : x
  2. Step 2: Convert to fraction form
    13,936.32/19,231.11 = 8,270.82/x
  3. Step 3: Cross multiply
    13,936.32x = 19,231.11 × 8,270.82
  4. Step 4: Simplify right side
    13,936.32x = 159,057,049.21
  5. Step 5: Solve for x
    x = 159,057,049.21/13,936.32
  6. Step 6: Final answer
    x = 11,413.13

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1.5x scale

Why These Related Problems?

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