Home / 10,912.96-16,377.68-8,747.83

Finding the Fourth Proportional to 10,912.96, 16,377.68 and 8,747.83

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Solution

The fourth proportional to 10,912.96, 16,377.68 and 8,747.83 is: 13,128.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,912.96 : 16,377.68 = 8,747.83 : x
  2. Step 2: Convert to fraction form
    10,912.96/16,377.68 = 8,747.83/x
  3. Step 3: Cross multiply
    10,912.96x = 16,377.68 × 8,747.83
  4. Step 4: Simplify right side
    10,912.96x = 143,269,160.43
  5. Step 5: Solve for x
    x = 143,269,160.43/10,912.96
  6. Step 6: Final answer
    x = 13,128.35

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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.