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Finding the Fourth Proportional to 18,697, 28,049.54 and 5,550.28

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Solution

The fourth proportional to 18,697, 28,049.54 and 5,550.28 is: 8,326.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,697 : 28,049.54 = 5,550.28 : x
  2. Step 2: Convert to fraction form
    18,697/28,049.54 = 5,550.28/x
  3. Step 3: Cross multiply
    18,697x = 28,049.54 × 5,550.28
  4. Step 4: Simplify right side
    18,697x = 155,682,800.87
  5. Step 5: Solve for x
    x = 155,682,800.87/18,697
  6. Step 6: Final answer
    x = 8,326.62

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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.