Home / 13,976.43-19,161.54-13,727.66

Finding the Fourth Proportional to 13,976.43, 19,161.54 and 13,727.66

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Solution

The fourth proportional to 13,976.43, 19,161.54 and 13,727.66 is: 18,820.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,976.43 : 19,161.54 = 13,727.66 : x
  2. Step 2: Convert to fraction form
    13,976.43/19,161.54 = 13,727.66/x
  3. Step 3: Cross multiply
    13,976.43x = 19,161.54 × 13,727.66
  4. Step 4: Simplify right side
    13,976.43x = 263,043,010.39
  5. Step 5: Solve for x
    x = 263,043,010.39/13,976.43
  6. Step 6: Final answer
    x = 18,820.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.