Home / 10,917.20-16,367.70-3,517.40

Finding the Fourth Proportional to 10,917.20, 16,367.70 and 3,517.40

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Solution

The fourth proportional to 10,917.20, 16,367.70 and 3,517.40 is: 5,273.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,917.20 : 16,367.70 = 3,517.40 : x
  2. Step 2: Convert to fraction form
    10,917.20/16,367.70 = 3,517.40/x
  3. Step 3: Cross multiply
    10,917.20x = 16,367.70 × 3,517.40
  4. Step 4: Simplify right side
    10,917.20x = 57,571,747.98
  5. Step 5: Solve for x
    x = 57,571,747.98/10,917.20
  6. Step 6: Final answer
    x = 5,273.49

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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.