Home / 11,340.43-15,647.37-6,863.29

Finding the Fourth Proportional to 11,340.43, 15,647.37 and 6,863.29

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Solution

The fourth proportional to 11,340.43, 15,647.37 and 6,863.29 is: 9,469.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,340.43 : 15,647.37 = 6,863.29 : x
  2. Step 2: Convert to fraction form
    11,340.43/15,647.37 = 6,863.29/x
  3. Step 3: Cross multiply
    11,340.43x = 15,647.37 × 6,863.29
  4. Step 4: Simplify right side
    11,340.43x = 107,392,438.05
  5. Step 5: Solve for x
    x = 107,392,438.05/11,340.43
  6. Step 6: Final answer
    x = 9,469.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.