Home / 18,381.96-27,564.66-5,231.34

Finding the Fourth Proportional to 18,381.96, 27,564.66 and 5,231.34

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Solution

The fourth proportional to 18,381.96, 27,564.66 and 5,231.34 is: 7,844.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,381.96 : 27,564.66 = 5,231.34 : x
  2. Step 2: Convert to fraction form
    18,381.96/27,564.66 = 5,231.34/x
  3. Step 3: Cross multiply
    18,381.96x = 27,564.66 × 5,231.34
  4. Step 4: Simplify right side
    18,381.96x = 144,200,108.44
  5. Step 5: Solve for x
    x = 144,200,108.44/18,381.96
  6. Step 6: Final answer
    x = 7,844.65

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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.