Home / 12,090.28-18,134.97-3,324.97

Finding the Fourth Proportional to 12,090.28, 18,134.97 and 3,324.97

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Solution

The fourth proportional to 12,090.28, 18,134.97 and 3,324.97 is: 4,987.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,090.28 : 18,134.97 = 3,324.97 : x
  2. Step 2: Convert to fraction form
    12,090.28/18,134.97 = 3,324.97/x
  3. Step 3: Cross multiply
    12,090.28x = 18,134.97 × 3,324.97
  4. Step 4: Simplify right side
    12,090.28x = 60,298,231.20
  5. Step 5: Solve for x
    x = 60,298,231.20/12,090.28
  6. Step 6: Final answer
    x = 4,987.33

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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.