Home / 19,400.82-26,772.42-11,859.78

Finding the Fourth Proportional to 19,400.82, 26,772.42 and 11,859.78

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Solution

The fourth proportional to 19,400.82, 26,772.42 and 11,859.78 is: 16,366.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,400.82 : 26,772.42 = 11,859.78 : x
  2. Step 2: Convert to fraction form
    19,400.82/26,772.42 = 11,859.78/x
  3. Step 3: Cross multiply
    19,400.82x = 26,772.42 × 11,859.78
  4. Step 4: Simplify right side
    19,400.82x = 317,515,011.27
  5. Step 5: Solve for x
    x = 317,515,011.27/19,400.82
  6. Step 6: Final answer
    x = 16,366.06

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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.