Home / 18,267.05-27,400.68-5,119.54

Finding the Fourth Proportional to 18,267.05, 27,400.68 and 5,119.54

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Solution

The fourth proportional to 18,267.05, 27,400.68 and 5,119.54 is: 7,679.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,267.05 : 27,400.68 = 5,119.54 : x
  2. Step 2: Convert to fraction form
    18,267.05/27,400.68 = 5,119.54/x
  3. Step 3: Cross multiply
    18,267.05x = 27,400.68 × 5,119.54
  4. Step 4: Simplify right side
    18,267.05x = 140,278,808.79
  5. Step 5: Solve for x
    x = 140,278,808.79/18,267.05
  6. Step 6: Final answer
    x = 7,679.33

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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.