Home / 11,188.74-16,780.75-3,289.11

Finding the Fourth Proportional to 11,188.74, 16,780.75 and 3,289.11

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Solution

The fourth proportional to 11,188.74, 16,780.75 and 3,289.11 is: 4,932.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,188.74 : 16,780.75 = 3,289.11 : x
  2. Step 2: Convert to fraction form
    11,188.74/16,780.75 = 3,289.11/x
  3. Step 3: Cross multiply
    11,188.74x = 16,780.75 × 3,289.11
  4. Step 4: Simplify right side
    11,188.74x = 55,193,716.19
  5. Step 5: Solve for x
    x = 55,193,716.19/11,188.74
  6. Step 6: Final answer
    x = 4,932.97

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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.