Home / 18,565.35-27,855.32-8,169.81

Finding the Fourth Proportional to 18,565.35, 27,855.32 and 8,169.81

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Solution

The fourth proportional to 18,565.35, 27,855.32 and 8,169.81 is: 12,257.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,565.35 : 27,855.32 = 8,169.81 : x
  2. Step 2: Convert to fraction form
    18,565.35/27,855.32 = 8,169.81/x
  3. Step 3: Cross multiply
    18,565.35x = 27,855.32 × 8,169.81
  4. Step 4: Simplify right side
    18,565.35x = 227,572,731.32
  5. Step 5: Solve for x
    x = 227,572,731.32/18,565.35
  6. Step 6: Final answer
    x = 12,257.93

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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.