Home / 11,286.75-15,572.11-7,310.91

Finding the Fourth Proportional to 11,286.75, 15,572.11 and 7,310.91

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Solution

The fourth proportional to 11,286.75, 15,572.11 and 7,310.91 is: 10,086.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,286.75 : 15,572.11 = 7,310.91 : x
  2. Step 2: Convert to fraction form
    11,286.75/15,572.11 = 7,310.91/x
  3. Step 3: Cross multiply
    11,286.75x = 15,572.11 × 7,310.91
  4. Step 4: Simplify right side
    11,286.75x = 113,846,294.72
  5. Step 5: Solve for x
    x = 113,846,294.72/11,286.75
  6. Step 6: Final answer
    x = 10,086.72

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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.