Home / 11,162.28-16,754.22-8,209.80

Finding the Fourth Proportional to 11,162.28, 16,754.22 and 8,209.80

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Solution

The fourth proportional to 11,162.28, 16,754.22 and 8,209.80 is: 12,322.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,162.28 : 16,754.22 = 8,209.80 : x
  2. Step 2: Convert to fraction form
    11,162.28/16,754.22 = 8,209.80/x
  3. Step 3: Cross multiply
    11,162.28x = 16,754.22 × 8,209.80
  4. Step 4: Simplify right side
    11,162.28x = 137,548,795.36
  5. Step 5: Solve for x
    x = 137,548,795.36/11,162.28
  6. Step 6: Final answer
    x = 12,322.64

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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.