Home / 8,158.51-11,286.30-7,863.27

Finding the Fourth Proportional to 8,158.51, 11,286.30 and 7,863.27

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Solution

The fourth proportional to 8,158.51, 11,286.30 and 7,863.27 is: 10,877.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,158.51 : 11,286.30 = 7,863.27 : x
  2. Step 2: Convert to fraction form
    8,158.51/11,286.30 = 7,863.27/x
  3. Step 3: Cross multiply
    8,158.51x = 11,286.30 × 7,863.27
  4. Step 4: Simplify right side
    8,158.51x = 88,747,224.20
  5. Step 5: Solve for x
    x = 88,747,224.20/8,158.51
  6. Step 6: Final answer
    x = 10,877.87

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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.