Home / 11,947.25-17,920.87-3,627.31

Finding the Fourth Proportional to 11,947.25, 17,920.87 and 3,627.31

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Solution

The fourth proportional to 11,947.25, 17,920.87 and 3,627.31 is: 5,440.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,947.25 : 17,920.87 = 3,627.31 : x
  2. Step 2: Convert to fraction form
    11,947.25/17,920.87 = 3,627.31/x
  3. Step 3: Cross multiply
    11,947.25x = 17,920.87 × 3,627.31
  4. Step 4: Simplify right side
    11,947.25x = 65,004,490.49
  5. Step 5: Solve for x
    x = 65,004,490.49/11,947.25
  6. Step 6: Final answer
    x = 5,440.96

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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.