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Finding the Fourth Proportional to 14,674.90, 22,021.80 and 8,105.80

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Solution

The fourth proportional to 14,674.90, 22,021.80 and 8,105.80 is: 12,163.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,674.90 : 22,021.80 = 8,105.80 : x
  2. Step 2: Convert to fraction form
    14,674.90/22,021.80 = 8,105.80/x
  3. Step 3: Cross multiply
    14,674.90x = 22,021.80 × 8,105.80
  4. Step 4: Simplify right side
    14,674.90x = 178,504,306.44
  5. Step 5: Solve for x
    x = 178,504,306.44/14,674.90
  6. Step 6: Final answer
    x = 12,163.92

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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.