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Finding the Fourth Proportional to 18,153.70, 27,226.95 and 8,793.70

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Solution

The fourth proportional to 18,153.70, 27,226.95 and 8,793.70 is: 13,188.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,153.70 : 27,226.95 = 8,793.70 : x
  2. Step 2: Convert to fraction form
    18,153.70/27,226.95 = 8,793.70/x
  3. Step 3: Cross multiply
    18,153.70x = 27,226.95 × 8,793.70
  4. Step 4: Simplify right side
    18,153.70x = 239,425,630.22
  5. Step 5: Solve for x
    x = 239,425,630.22/18,153.70
  6. Step 6: Final answer
    x = 13,188.81

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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.