Home / 12,326.28-18,489.54-5,305.86

Finding the Fourth Proportional to 12,326.28, 18,489.54 and 5,305.86

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Solution

The fourth proportional to 12,326.28, 18,489.54 and 5,305.86 is: 7,958.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,326.28 : 18,489.54 = 5,305.86 : x
  2. Step 2: Convert to fraction form
    12,326.28/18,489.54 = 5,305.86/x
  3. Step 3: Cross multiply
    12,326.28x = 18,489.54 × 5,305.86
  4. Step 4: Simplify right side
    12,326.28x = 98,102,910.70
  5. Step 5: Solve for x
    x = 98,102,910.70/12,326.28
  6. Step 6: Final answer
    x = 7,958.84

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1.5x scale

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.