Home / 11,917.13-16,447.05-6,882.57

Finding the Fourth Proportional to 11,917.13, 16,447.05 and 6,882.57

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Solution

The fourth proportional to 11,917.13, 16,447.05 and 6,882.57 is: 9,498.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,917.13 : 16,447.05 = 6,882.57 : x
  2. Step 2: Convert to fraction form
    11,917.13/16,447.05 = 6,882.57/x
  3. Step 3: Cross multiply
    11,917.13x = 16,447.05 × 6,882.57
  4. Step 4: Simplify right side
    11,917.13x = 113,197,972.92
  5. Step 5: Solve for x
    x = 113,197,972.92/11,917.13
  6. Step 6: Final answer
    x = 9,498.77

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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.