Home / 11,725.92-16,179.84-6,690.15

Finding the Fourth Proportional to 11,725.92, 16,179.84 and 6,690.15

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Solution

The fourth proportional to 11,725.92, 16,179.84 and 6,690.15 is: 9,231.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,725.92 : 16,179.84 = 6,690.15 : x
  2. Step 2: Convert to fraction form
    11,725.92/16,179.84 = 6,690.15/x
  3. Step 3: Cross multiply
    11,725.92x = 16,179.84 × 6,690.15
  4. Step 4: Simplify right side
    11,725.92x = 108,245,556.58
  5. Step 5: Solve for x
    x = 108,245,556.58/11,725.92
  6. Step 6: Final answer
    x = 9,231.31

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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.