Home / 13,781.92-19,019.24-10,326.38

Finding the Fourth Proportional to 13,781.92, 19,019.24 and 10,326.38

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Solution

The fourth proportional to 13,781.92, 19,019.24 and 10,326.38 is: 14,250.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,781.92 : 19,019.24 = 10,326.38 : x
  2. Step 2: Convert to fraction form
    13,781.92/19,019.24 = 10,326.38/x
  3. Step 3: Cross multiply
    13,781.92x = 19,019.24 × 10,326.38
  4. Step 4: Simplify right side
    13,781.92x = 196,399,972.92
  5. Step 5: Solve for x
    x = 196,399,972.92/13,781.92
  6. Step 6: Final answer
    x = 14,250.55

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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.