Home / 11,716.80-16,167.56-6,680.04

Finding the Fourth Proportional to 11,716.80, 16,167.56 and 6,680.04

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Solution

The fourth proportional to 11,716.80, 16,167.56 and 6,680.04 is: 9,217.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,716.80 : 16,167.56 = 6,680.04 : x
  2. Step 2: Convert to fraction form
    11,716.80/16,167.56 = 6,680.04/x
  3. Step 3: Cross multiply
    11,716.80x = 16,167.56 × 6,680.04
  4. Step 4: Simplify right side
    11,716.80x = 107,999,947.50
  5. Step 5: Solve for x
    x = 107,999,947.50/11,716.80
  6. Step 6: Final answer
    x = 9,217.53

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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.