Home / 18,680.20-28,003.42-6,825.62

Finding the Fourth Proportional to 18,680.20, 28,003.42 and 6,825.62

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Solution

The fourth proportional to 18,680.20, 28,003.42 and 6,825.62 is: 10,232.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,680.20 : 28,003.42 = 6,825.62 : x
  2. Step 2: Convert to fraction form
    18,680.20/28,003.42 = 6,825.62/x
  3. Step 3: Cross multiply
    18,680.20x = 28,003.42 × 6,825.62
  4. Step 4: Simplify right side
    18,680.20x = 191,140,624.64
  5. Step 5: Solve for x
    x = 191,140,624.64/18,680.20
  6. Step 6: Final answer
    x = 10,232.26

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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.