Home / 18,565.32-27,850.74-6,721.86

Finding the Fourth Proportional to 18,565.32, 27,850.74 and 6,721.86

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Solution

The fourth proportional to 18,565.32, 27,850.74 and 6,721.86 is: 10,083.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,565.32 : 27,850.74 = 6,721.86 : x
  2. Step 2: Convert to fraction form
    18,565.32/27,850.74 = 6,721.86/x
  3. Step 3: Cross multiply
    18,565.32x = 27,850.74 × 6,721.86
  4. Step 4: Simplify right side
    18,565.32x = 187,208,775.18
  5. Step 5: Solve for x
    x = 187,208,775.18/18,565.32
  6. Step 6: Final answer
    x = 10,083.79

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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.