Home / 18,239.43-27,359.11-7,138.33

Finding the Fourth Proportional to 18,239.43, 27,359.11 and 7,138.33

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Solution

The fourth proportional to 18,239.43, 27,359.11 and 7,138.33 is: 10,707.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,239.43 : 27,359.11 = 7,138.33 : x
  2. Step 2: Convert to fraction form
    18,239.43/27,359.11 = 7,138.33/x
  3. Step 3: Cross multiply
    18,239.43x = 27,359.11 × 7,138.33
  4. Step 4: Simplify right side
    18,239.43x = 195,298,355.69
  5. Step 5: Solve for x
    x = 195,298,355.69/18,239.43
  6. Step 6: Final answer
    x = 10,707.48

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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.