Home / 18,239.82-27,361.26-7,145.70

Finding the Fourth Proportional to 18,239.82, 27,361.26 and 7,145.70

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Solution

The fourth proportional to 18,239.82, 27,361.26 and 7,145.70 is: 10,719.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,239.82 : 27,361.26 = 7,145.70 : x
  2. Step 2: Convert to fraction form
    18,239.82/27,361.26 = 7,145.70/x
  3. Step 3: Cross multiply
    18,239.82x = 27,361.26 × 7,145.70
  4. Step 4: Simplify right side
    18,239.82x = 195,515,355.58
  5. Step 5: Solve for x
    x = 195,515,355.58/18,239.82
  6. Step 6: Final answer
    x = 10,719.15

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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.