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Finding the Fourth Proportional to 18,737.38, 28,093.11 and 8,202.34

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Solution

The fourth proportional to 18,737.38, 28,093.11 and 8,202.34 is: 12,297.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,737.38 : 28,093.11 = 8,202.34 : x
  2. Step 2: Convert to fraction form
    18,737.38/28,093.11 = 8,202.34/x
  3. Step 3: Cross multiply
    18,737.38x = 28,093.11 × 8,202.34
  4. Step 4: Simplify right side
    18,737.38x = 230,429,239.88
  5. Step 5: Solve for x
    x = 230,429,239.88/18,737.38
  6. Step 6: Final answer
    x = 12,297.84

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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.