Home / 11,243.25-16,865.69-4,317.75

Finding the Fourth Proportional to 11,243.25, 16,865.69 and 4,317.75

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Solution

The fourth proportional to 11,243.25, 16,865.69 and 4,317.75 is: 6,476.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,243.25 : 16,865.69 = 4,317.75 : x
  2. Step 2: Convert to fraction form
    11,243.25/16,865.69 = 4,317.75/x
  3. Step 3: Cross multiply
    11,243.25x = 16,865.69 × 4,317.75
  4. Step 4: Simplify right side
    11,243.25x = 72,821,811.41
  5. Step 5: Solve for x
    x = 72,821,811.41/11,243.25
  6. Step 6: Final answer
    x = 6,476.94

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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.