Home / 6,947-10,418.92-2,015.56

Finding the Fourth Proportional to 6,947, 10,418.92 and 2,015.56

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Solution

The fourth proportional to 6,947, 10,418.92 and 2,015.56 is: 3,022.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,947 : 10,418.92 = 2,015.56 : x
  2. Step 2: Convert to fraction form
    6,947/10,418.92 = 2,015.56/x
  3. Step 3: Cross multiply
    6,947x = 10,418.92 × 2,015.56
  4. Step 4: Simplify right side
    6,947x = 20,999,958.40
  5. Step 5: Solve for x
    x = 20,999,958.40/6,947
  6. Step 6: Final answer
    x = 3,022.88

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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.