Home / 18,665.25-27,998.26-5,517.62

Finding the Fourth Proportional to 18,665.25, 27,998.26 and 5,517.62

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Solution

The fourth proportional to 18,665.25, 27,998.26 and 5,517.62 is: 8,276.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,665.25 : 27,998.26 = 5,517.62 : x
  2. Step 2: Convert to fraction form
    18,665.25/27,998.26 = 5,517.62/x
  3. Step 3: Cross multiply
    18,665.25x = 27,998.26 × 5,517.62
  4. Step 4: Simplify right side
    18,665.25x = 154,483,759.34
  5. Step 5: Solve for x
    x = 154,483,759.34/18,665.25
  6. Step 6: Final answer
    x = 8,276.54

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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.