Home / 12,727.90-19,105.82-10,112.22

Finding the Fourth Proportional to 12,727.90, 19,105.82 and 10,112.22

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Solution

The fourth proportional to 12,727.90, 19,105.82 and 10,112.22 is: 15,179.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,727.90 : 19,105.82 = 10,112.22 : x
  2. Step 2: Convert to fraction form
    12,727.90/19,105.82 = 10,112.22/x
  3. Step 3: Cross multiply
    12,727.90x = 19,105.82 × 10,112.22
  4. Step 4: Simplify right side
    12,727.90x = 193,202,242.48
  5. Step 5: Solve for x
    x = 193,202,242.48/12,727.90
  6. Step 6: Final answer
    x = 15,179.43

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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.