Home / 11,711.71-16,162.09-6,676.75

Finding the Fourth Proportional to 11,711.71, 16,162.09 and 6,676.75

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Solution

The fourth proportional to 11,711.71, 16,162.09 and 6,676.75 is: 9,213.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,711.71 : 16,162.09 = 6,676.75 : x
  2. Step 2: Convert to fraction form
    11,711.71/16,162.09 = 6,676.75/x
  3. Step 3: Cross multiply
    11,711.71x = 16,162.09 × 6,676.75
  4. Step 4: Simplify right side
    11,711.71x = 107,910,234.41
  5. Step 5: Solve for x
    x = 107,910,234.41/11,711.71
  6. Step 6: Final answer
    x = 9,213.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.