Home / 11,682.72-16,121.50-6,648.17

Finding the Fourth Proportional to 11,682.72, 16,121.50 and 6,648.17

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Solution

The fourth proportional to 11,682.72, 16,121.50 and 6,648.17 is: 9,174.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,682.72 : 16,121.50 = 6,648.17 : x
  2. Step 2: Convert to fraction form
    11,682.72/16,121.50 = 6,648.17/x
  3. Step 3: Cross multiply
    11,682.72x = 16,121.50 × 6,648.17
  4. Step 4: Simplify right side
    11,682.72x = 107,178,375.43
  5. Step 5: Solve for x
    x = 107,178,375.43/11,682.72
  6. Step 6: Final answer
    x = 9,174.09

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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.