Home / 8,231.20-11,356.23-4,645.73

Finding the Fourth Proportional to 8,231.20, 11,356.23 and 4,645.73

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Solution

The fourth proportional to 8,231.20, 11,356.23 and 4,645.73 is: 6,409.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,231.20 : 11,356.23 = 4,645.73 : x
  2. Step 2: Convert to fraction form
    8,231.20/11,356.23 = 4,645.73/x
  3. Step 3: Cross multiply
    8,231.20x = 11,356.23 × 4,645.73
  4. Step 4: Simplify right side
    8,231.20x = 52,757,978.40
  5. Step 5: Solve for x
    x = 52,757,978.40/8,231.20
  6. Step 6: Final answer
    x = 6,409.51

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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.