Home / 12,122.11-18,181.09-3,354.97

Finding the Fourth Proportional to 12,122.11, 18,181.09 and 3,354.97

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Solution

The fourth proportional to 12,122.11, 18,181.09 and 3,354.97 is: 5,031.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,122.11 : 18,181.09 = 3,354.97 : x
  2. Step 2: Convert to fraction form
    12,122.11/18,181.09 = 3,354.97/x
  3. Step 3: Cross multiply
    12,122.11x = 18,181.09 × 3,354.97
  4. Step 4: Simplify right side
    12,122.11x = 60,997,011.52
  5. Step 5: Solve for x
    x = 60,997,011.52/12,122.11
  6. Step 6: Final answer
    x = 5,031.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.