Home / 8,125.24-11,193.42-7,729.96

Finding the Fourth Proportional to 8,125.24, 11,193.42 and 7,729.96

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Solution

The fourth proportional to 8,125.24, 11,193.42 and 7,729.96 is: 10,648.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,125.24 : 11,193.42 = 7,729.96 : x
  2. Step 2: Convert to fraction form
    8,125.24/11,193.42 = 7,729.96/x
  3. Step 3: Cross multiply
    8,125.24x = 11,193.42 × 7,729.96
  4. Step 4: Simplify right side
    8,125.24x = 86,524,688.86
  5. Step 5: Solve for x
    x = 86,524,688.86/8,125.24
  6. Step 6: Final answer
    x = 10,648.88

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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.