Home / 8,231.31-11,359.12-4,454.40

Finding the Fourth Proportional to 8,231.31, 11,359.12 and 4,454.40

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Solution

The fourth proportional to 8,231.31, 11,359.12 and 4,454.40 is: 6,147.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,231.31 : 11,359.12 = 4,454.40 : x
  2. Step 2: Convert to fraction form
    8,231.31/11,359.12 = 4,454.40/x
  3. Step 3: Cross multiply
    8,231.31x = 11,359.12 × 4,454.40
  4. Step 4: Simplify right side
    8,231.31x = 50,598,007.33
  5. Step 5: Solve for x
    x = 50,598,007.33/8,231.31
  6. Step 6: Final answer
    x = 6,147.02

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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.