Home / 10,817.69-16,183.85-8,192.78

Finding the Fourth Proportional to 10,817.69, 16,183.85 and 8,192.78

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Solution

The fourth proportional to 10,817.69, 16,183.85 and 8,192.78 is: 12,256.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,817.69 : 16,183.85 = 8,192.78 : x
  2. Step 2: Convert to fraction form
    10,817.69/16,183.85 = 8,192.78/x
  3. Step 3: Cross multiply
    10,817.69x = 16,183.85 × 8,192.78
  4. Step 4: Simplify right side
    10,817.69x = 132,590,775.77
  5. Step 5: Solve for x
    x = 132,590,775.77/10,817.69
  6. Step 6: Final answer
    x = 12,256.85

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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.