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Finding the Fourth Proportional to 18,603.60, 27,910.26 and 10,805.73

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Solution

The fourth proportional to 18,603.60, 27,910.26 and 10,805.73 is: 16,211.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,603.60 : 27,910.26 = 10,805.73 : x
  2. Step 2: Convert to fraction form
    18,603.60/27,910.26 = 10,805.73/x
  3. Step 3: Cross multiply
    18,603.60x = 27,910.26 × 10,805.73
  4. Step 4: Simplify right side
    18,603.60x = 301,590,733.79
  5. Step 5: Solve for x
    x = 301,590,733.79/18,603.60
  6. Step 6: Final answer
    x = 16,211.42

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1.5x scale

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.