Home / 8,222.64-11,340.84-7,279.44

Finding the Fourth Proportional to 8,222.64, 11,340.84 and 7,279.44

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Solution

The fourth proportional to 8,222.64, 11,340.84 and 7,279.44 is: 10,039.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,222.64 : 11,340.84 = 7,279.44 : x
  2. Step 2: Convert to fraction form
    8,222.64/11,340.84 = 7,279.44/x
  3. Step 3: Cross multiply
    8,222.64x = 11,340.84 × 7,279.44
  4. Step 4: Simplify right side
    8,222.64x = 82,554,964.33
  5. Step 5: Solve for x
    x = 82,554,964.33/8,222.64
  6. Step 6: Final answer
    x = 10,039.96

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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.