Home / 16,231.75-22,399.82-8,779.75

Finding the Fourth Proportional to 16,231.75, 22,399.82 and 8,779.75

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Solution

The fourth proportional to 16,231.75, 22,399.82 and 8,779.75 is: 12,116.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,231.75 : 22,399.82 = 8,779.75 : x
  2. Step 2: Convert to fraction form
    16,231.75/22,399.82 = 8,779.75/x
  3. Step 3: Cross multiply
    16,231.75x = 22,399.82 × 8,779.75
  4. Step 4: Simplify right side
    16,231.75x = 196,664,819.65
  5. Step 5: Solve for x
    x = 196,664,819.65/16,231.75
  6. Step 6: Final answer
    x = 12,116.06

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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.