Home / 18,121.26-27,179.58-7,020.34

Finding the Fourth Proportional to 18,121.26, 27,179.58 and 7,020.34

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Solution

The fourth proportional to 18,121.26, 27,179.58 and 7,020.34 is: 10,529.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,121.26 : 27,179.58 = 7,020.34 : x
  2. Step 2: Convert to fraction form
    18,121.26/27,179.58 = 7,020.34/x
  3. Step 3: Cross multiply
    18,121.26x = 27,179.58 × 7,020.34
  4. Step 4: Simplify right side
    18,121.26x = 190,809,892.66
  5. Step 5: Solve for x
    x = 190,809,892.66/18,121.26
  6. Step 6: Final answer
    x = 10,529.62

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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.