Home / 13,769.64-20,645.19-8,226.86

Finding the Fourth Proportional to 13,769.64, 20,645.19 and 8,226.86

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Solution

The fourth proportional to 13,769.64, 20,645.19 and 8,226.86 is: 12,334.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,769.64 : 20,645.19 = 8,226.86 : x
  2. Step 2: Convert to fraction form
    13,769.64/20,645.19 = 8,226.86/x
  3. Step 3: Cross multiply
    13,769.64x = 20,645.19 × 8,226.86
  4. Step 4: Simplify right side
    13,769.64x = 169,844,984.58
  5. Step 5: Solve for x
    x = 169,844,984.58/13,769.64
  6. Step 6: Final answer
    x = 12,334.74

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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.