Home / 11,478.75-17,221.02-3,270.75

Finding the Fourth Proportional to 11,478.75, 17,221.02 and 3,270.75

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Solution

The fourth proportional to 11,478.75, 17,221.02 and 3,270.75 is: 4,906.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,478.75 : 17,221.02 = 3,270.75 : x
  2. Step 2: Convert to fraction form
    11,478.75/17,221.02 = 3,270.75/x
  3. Step 3: Cross multiply
    11,478.75x = 17,221.02 × 3,270.75
  4. Step 4: Simplify right side
    11,478.75x = 56,325,634.81
  5. Step 5: Solve for x
    x = 56,325,634.81/11,478.75
  6. Step 6: Final answer
    x = 4,906.95

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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.