Home / 18,558.56-27,842.70-6,872.96

Finding the Fourth Proportional to 18,558.56, 27,842.70 and 6,872.96

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Solution

The fourth proportional to 18,558.56, 27,842.70 and 6,872.96 is: 10,311.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,558.56 : 27,842.70 = 6,872.96 : x
  2. Step 2: Convert to fraction form
    18,558.56/27,842.70 = 6,872.96/x
  3. Step 3: Cross multiply
    18,558.56x = 27,842.70 × 6,872.96
  4. Step 4: Simplify right side
    18,558.56x = 191,361,763.39
  5. Step 5: Solve for x
    x = 191,361,763.39/18,558.56
  6. Step 6: Final answer
    x = 10,311.24

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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.