Home / 11,917.72-16,446.40-6,881.55

Finding the Fourth Proportional to 11,917.72, 16,446.40 and 6,881.55

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Solution

The fourth proportional to 11,917.72, 16,446.40 and 6,881.55 is: 9,496.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,917.72 : 16,446.40 = 6,881.55 : x
  2. Step 2: Convert to fraction form
    11,917.72/16,446.40 = 6,881.55/x
  3. Step 3: Cross multiply
    11,917.72x = 16,446.40 × 6,881.55
  4. Step 4: Simplify right side
    11,917.72x = 113,176,723.92
  5. Step 5: Solve for x
    x = 113,176,723.92/11,917.72
  6. Step 6: Final answer
    x = 9,496.51

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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.