Home / 7,447.32-11,170.56-3,286.20

Finding the Fourth Proportional to 7,447.32, 11,170.56 and 3,286.20

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Solution

The fourth proportional to 7,447.32, 11,170.56 and 3,286.20 is: 4,929.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,447.32 : 11,170.56 = 3,286.20 : x
  2. Step 2: Convert to fraction form
    7,447.32/11,170.56 = 3,286.20/x
  3. Step 3: Cross multiply
    7,447.32x = 11,170.56 × 3,286.20
  4. Step 4: Simplify right side
    7,447.32x = 36,708,694.27
  5. Step 5: Solve for x
    x = 36,708,694.27/7,447.32
  6. Step 6: Final answer
    x = 4,929.11

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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.