Home / 18,018.62-27,020.67-7,481.46

Finding the Fourth Proportional to 18,018.62, 27,020.67 and 7,481.46

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Solution

The fourth proportional to 18,018.62, 27,020.67 and 7,481.46 is: 11,219.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,018.62 : 27,020.67 = 7,481.46 : x
  2. Step 2: Convert to fraction form
    18,018.62/27,020.67 = 7,481.46/x
  3. Step 3: Cross multiply
    18,018.62x = 27,020.67 × 7,481.46
  4. Step 4: Simplify right side
    18,018.62x = 202,154,061.78
  5. Step 5: Solve for x
    x = 202,154,061.78/18,018.62
  6. Step 6: Final answer
    x = 11,219.18

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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.