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Finding the Fourth Proportional to 19,819.24, 27,351.41 and 11,859.94

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Solution

The fourth proportional to 19,819.24, 27,351.41 and 11,859.94 is: 16,367.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,819.24 : 27,351.41 = 11,859.94 : x
  2. Step 2: Convert to fraction form
    19,819.24/27,351.41 = 11,859.94/x
  3. Step 3: Cross multiply
    19,819.24x = 27,351.41 × 11,859.94
  4. Step 4: Simplify right side
    19,819.24x = 324,385,929.93
  5. Step 5: Solve for x
    x = 324,385,929.93/19,819.24
  6. Step 6: Final answer
    x = 16,367.22

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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.