Home / 8,102.72-11,181.12-4,958.48

Finding the Fourth Proportional to 8,102.72, 11,181.12 and 4,958.48

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Solution

The fourth proportional to 8,102.72, 11,181.12 and 4,958.48 is: 6,842.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,102.72 : 11,181.12 = 4,958.48 : x
  2. Step 2: Convert to fraction form
    8,102.72/11,181.12 = 4,958.48/x
  3. Step 3: Cross multiply
    8,102.72x = 11,181.12 × 4,958.48
  4. Step 4: Simplify right side
    8,102.72x = 55,441,359.90
  5. Step 5: Solve for x
    x = 55,441,359.90/8,102.72
  6. Step 6: Final answer
    x = 6,842.31

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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.