Home / 18,379.14-27,558.62-8,512.98

Finding the Fourth Proportional to 18,379.14, 27,558.62 and 8,512.98

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Solution

The fourth proportional to 18,379.14, 27,558.62 and 8,512.98 is: 12,764.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,379.14 : 27,558.62 = 8,512.98 : x
  2. Step 2: Convert to fraction form
    18,379.14/27,558.62 = 8,512.98/x
  3. Step 3: Cross multiply
    18,379.14x = 27,558.62 × 8,512.98
  4. Step 4: Simplify right side
    18,379.14x = 234,605,980.89
  5. Step 5: Solve for x
    x = 234,605,980.89/18,379.14
  6. Step 6: Final answer
    x = 12,764.80

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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.