Home / 12,000.76-17,997.09-4,208.56

Finding the Fourth Proportional to 12,000.76, 17,997.09 and 4,208.56

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Solution

The fourth proportional to 12,000.76, 17,997.09 and 4,208.56 is: 6,311.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,000.76 : 17,997.09 = 4,208.56 : x
  2. Step 2: Convert to fraction form
    12,000.76/17,997.09 = 4,208.56/x
  3. Step 3: Cross multiply
    12,000.76x = 17,997.09 × 4,208.56
  4. Step 4: Simplify right side
    12,000.76x = 75,741,833.09
  5. Step 5: Solve for x
    x = 75,741,833.09/12,000.76
  6. Step 6: Final answer
    x = 6,311.42

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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.