Home / 11,114.88-15,336.72-6,928.80

Finding the Fourth Proportional to 11,114.88, 15,336.72 and 6,928.80

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Solution

The fourth proportional to 11,114.88, 15,336.72 and 6,928.80 is: 9,560.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,114.88 : 15,336.72 = 6,928.80 : x
  2. Step 2: Convert to fraction form
    11,114.88/15,336.72 = 6,928.80/x
  3. Step 3: Cross multiply
    11,114.88x = 15,336.72 × 6,928.80
  4. Step 4: Simplify right side
    11,114.88x = 106,265,065.54
  5. Step 5: Solve for x
    x = 106,265,065.54/11,114.88
  6. Step 6: Final answer
    x = 9,560.61

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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.