Home / 8,212.16-11,324.12-7,546.34

Finding the Fourth Proportional to 8,212.16, 11,324.12 and 7,546.34

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Solution

The fourth proportional to 8,212.16, 11,324.12 and 7,546.34 is: 10,405.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,212.16 : 11,324.12 = 7,546.34 : x
  2. Step 2: Convert to fraction form
    8,212.16/11,324.12 = 7,546.34/x
  3. Step 3: Cross multiply
    8,212.16x = 11,324.12 × 7,546.34
  4. Step 4: Simplify right side
    8,212.16x = 85,455,659.72
  5. Step 5: Solve for x
    x = 85,455,659.72/8,212.16
  6. Step 6: Final answer
    x = 10,405.99

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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.