Home / 18,972.16-28,470.72-8,584.96

Finding the Fourth Proportional to 18,972.16, 28,470.72 and 8,584.96

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Solution

The fourth proportional to 18,972.16, 28,470.72 and 8,584.96 is: 12,883.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,972.16 : 28,470.72 = 8,584.96 : x
  2. Step 2: Convert to fraction form
    18,972.16/28,470.72 = 8,584.96/x
  3. Step 3: Cross multiply
    18,972.16x = 28,470.72 × 8,584.96
  4. Step 4: Simplify right side
    18,972.16x = 244,419,992.37
  5. Step 5: Solve for x
    x = 244,419,992.37/18,972.16
  6. Step 6: Final answer
    x = 12,883.09

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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.