Home / 15,940.20-23,910.39-8,154.48

Finding the Fourth Proportional to 15,940.20, 23,910.39 and 8,154.48

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Solution

The fourth proportional to 15,940.20, 23,910.39 and 8,154.48 is: 12,231.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,940.20 : 23,910.39 = 8,154.48 : x
  2. Step 2: Convert to fraction form
    15,940.20/23,910.39 = 8,154.48/x
  3. Step 3: Cross multiply
    15,940.20x = 23,910.39 × 8,154.48
  4. Step 4: Simplify right side
    15,940.20x = 194,976,797.05
  5. Step 5: Solve for x
    x = 194,976,797.05/15,940.20
  6. Step 6: Final answer
    x = 12,231.77

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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.