Home / 18,579.60-27,861.66-6,886.44

Finding the Fourth Proportional to 18,579.60, 27,861.66 and 6,886.44

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Solution

The fourth proportional to 18,579.60, 27,861.66 and 6,886.44 is: 10,326.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,579.60 : 27,861.66 = 6,886.44 : x
  2. Step 2: Convert to fraction form
    18,579.60/27,861.66 = 6,886.44/x
  3. Step 3: Cross multiply
    18,579.60x = 27,861.66 × 6,886.44
  4. Step 4: Simplify right side
    18,579.60x = 191,867,649.89
  5. Step 5: Solve for x
    x = 191,867,649.89/18,579.60
  6. Step 6: Final answer
    x = 10,326.79

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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.