Home / 11,716.35-16,168.42-6,680.40

Finding the Fourth Proportional to 11,716.35, 16,168.42 and 6,680.40

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Solution

The fourth proportional to 11,716.35, 16,168.42 and 6,680.40 is: 9,218.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,716.35 : 16,168.42 = 6,680.40 : x
  2. Step 2: Convert to fraction form
    11,716.35/16,168.42 = 6,680.40/x
  3. Step 3: Cross multiply
    11,716.35x = 16,168.42 × 6,680.40
  4. Step 4: Simplify right side
    11,716.35x = 108,011,479.57
  5. Step 5: Solve for x
    x = 108,011,479.57/11,716.35
  6. Step 6: Final answer
    x = 9,218.87

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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.