Home / 18,960.96-26,179.98-12,250.56

Finding the Fourth Proportional to 18,960.96, 26,179.98 and 12,250.56

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Solution

The fourth proportional to 18,960.96, 26,179.98 and 12,250.56 is: 16,914.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,960.96 : 26,179.98 = 12,250.56 : x
  2. Step 2: Convert to fraction form
    18,960.96/26,179.98 = 12,250.56/x
  3. Step 3: Cross multiply
    18,960.96x = 26,179.98 × 12,250.56
  4. Step 4: Simplify right side
    18,960.96x = 320,719,415.79
  5. Step 5: Solve for x
    x = 320,719,415.79/18,960.96
  6. Step 6: Final answer
    x = 16,914.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.