Home / 10,811.28-16,202.34-8,176.56

Finding the Fourth Proportional to 10,811.28, 16,202.34 and 8,176.56

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Solution

The fourth proportional to 10,811.28, 16,202.34 and 8,176.56 is: 12,253.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,811.28 : 16,202.34 = 8,176.56 : x
  2. Step 2: Convert to fraction form
    10,811.28/16,202.34 = 8,176.56/x
  3. Step 3: Cross multiply
    10,811.28x = 16,202.34 × 8,176.56
  4. Step 4: Simplify right side
    10,811.28x = 132,479,405.15
  5. Step 5: Solve for x
    x = 132,479,405.15/10,811.28
  6. Step 6: Final answer
    x = 12,253.81

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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.