Home / 18,174.18-27,208.42-11,132.81

Finding the Fourth Proportional to 18,174.18, 27,208.42 and 11,132.81

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Solution

The fourth proportional to 18,174.18, 27,208.42 and 11,132.81 is: 16,666.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,174.18 : 27,208.42 = 11,132.81 : x
  2. Step 2: Convert to fraction form
    18,174.18/27,208.42 = 11,132.81/x
  3. Step 3: Cross multiply
    18,174.18x = 27,208.42 × 11,132.81
  4. Step 4: Simplify right side
    18,174.18x = 302,906,108.42
  5. Step 5: Solve for x
    x = 302,906,108.42/18,174.18
  6. Step 6: Final answer
    x = 16,666.83

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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.