Home / 18,564.31-27,849.25-6,720.86

Finding the Fourth Proportional to 18,564.31, 27,849.25 and 6,720.86

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Solution

The fourth proportional to 18,564.31, 27,849.25 and 6,720.86 is: 10,082.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,564.31 : 27,849.25 = 6,720.86 : x
  2. Step 2: Convert to fraction form
    18,564.31/27,849.25 = 6,720.86/x
  3. Step 3: Cross multiply
    18,564.31x = 27,849.25 × 6,720.86
  4. Step 4: Simplify right side
    18,564.31x = 187,170,910.36
  5. Step 5: Solve for x
    x = 187,170,910.36/18,564.31
  6. Step 6: Final answer
    x = 10,082.30

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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.