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Finding the Fourth Proportional to 17,859.50, 26,789.04 and 7,471.28

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Solution

The fourth proportional to 17,859.50, 26,789.04 and 7,471.28 is: 11,206.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,859.50 : 26,789.04 = 7,471.28 : x
  2. Step 2: Convert to fraction form
    17,859.50/26,789.04 = 7,471.28/x
  3. Step 3: Cross multiply
    17,859.50x = 26,789.04 × 7,471.28
  4. Step 4: Simplify right side
    17,859.50x = 200,148,418.77
  5. Step 5: Solve for x
    x = 200,148,418.77/17,859.50
  6. Step 6: Final answer
    x = 11,206.83

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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.