Home / 19,519.80-26,934.42-11,859.09

Finding the Fourth Proportional to 19,519.80, 26,934.42 and 11,859.09

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Solution

The fourth proportional to 19,519.80, 26,934.42 and 11,859.09 is: 16,363.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,519.80 : 26,934.42 = 11,859.09 : x
  2. Step 2: Convert to fraction form
    19,519.80/26,934.42 = 11,859.09/x
  3. Step 3: Cross multiply
    19,519.80x = 26,934.42 × 11,859.09
  4. Step 4: Simplify right side
    19,519.80x = 319,417,576.21
  5. Step 5: Solve for x
    x = 319,417,576.21/19,519.80
  6. Step 6: Final answer
    x = 16,363.78

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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.