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Finding the Fourth Proportional to 18,604.62, 27,909.72 and 5,455.44

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Solution

The fourth proportional to 18,604.62, 27,909.72 and 5,455.44 is: 8,183.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,604.62 : 27,909.72 = 5,455.44 : x
  2. Step 2: Convert to fraction form
    18,604.62/27,909.72 = 5,455.44/x
  3. Step 3: Cross multiply
    18,604.62x = 27,909.72 × 5,455.44
  4. Step 4: Simplify right side
    18,604.62x = 152,259,802.88
  5. Step 5: Solve for x
    x = 152,259,802.88/18,604.62
  6. Step 6: Final answer
    x = 8,183.98

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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.