Home / 11,229.20-16,868.10-10,816.10

Finding the Fourth Proportional to 11,229.20, 16,868.10 and 10,816.10

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Solution

The fourth proportional to 11,229.20, 16,868.10 and 10,816.10 is: 16,247.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,229.20 : 16,868.10 = 10,816.10 : x
  2. Step 2: Convert to fraction form
    11,229.20/16,868.10 = 10,816.10/x
  3. Step 3: Cross multiply
    11,229.20x = 16,868.10 × 10,816.10
  4. Step 4: Simplify right side
    11,229.20x = 182,447,056.41
  5. Step 5: Solve for x
    x = 182,447,056.41/11,229.20
  6. Step 6: Final answer
    x = 16,247.56

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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.