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Finding the Fourth Proportional to 18,500.98, 27,749.17 and 10,906.63

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Solution

The fourth proportional to 18,500.98, 27,749.17 and 10,906.63 is: 16,358.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,500.98 : 27,749.17 = 10,906.63 : x
  2. Step 2: Convert to fraction form
    18,500.98/27,749.17 = 10,906.63/x
  3. Step 3: Cross multiply
    18,500.98x = 27,749.17 × 10,906.63
  4. Step 4: Simplify right side
    18,500.98x = 302,649,736.72
  5. Step 5: Solve for x
    x = 302,649,736.72/18,500.98
  6. Step 6: Final answer
    x = 16,358.58

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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.