Home / 10,817.12-16,227.68-3,423.44

Finding the Fourth Proportional to 10,817.12, 16,227.68 and 3,423.44

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Solution

The fourth proportional to 10,817.12, 16,227.68 and 3,423.44 is: 5,135.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,817.12 : 16,227.68 = 3,423.44 : x
  2. Step 2: Convert to fraction form
    10,817.12/16,227.68 = 3,423.44/x
  3. Step 3: Cross multiply
    10,817.12x = 16,227.68 × 3,423.44
  4. Step 4: Simplify right side
    10,817.12x = 55,554,390.56
  5. Step 5: Solve for x
    x = 55,554,390.56/10,817.12
  6. Step 6: Final answer
    x = 5,135.79

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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.