Home / 9,091.71-12,530.25-6,729.75

Finding the Fourth Proportional to 9,091.71, 12,530.25 and 6,729.75

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Solution

The fourth proportional to 9,091.71, 12,530.25 and 6,729.75 is: 9,274.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,091.71 : 12,530.25 = 6,729.75 : x
  2. Step 2: Convert to fraction form
    9,091.71/12,530.25 = 6,729.75/x
  3. Step 3: Cross multiply
    9,091.71x = 12,530.25 × 6,729.75
  4. Step 4: Simplify right side
    9,091.71x = 84,325,449.94
  5. Step 5: Solve for x
    x = 84,325,449.94/9,091.71
  6. Step 6: Final answer
    x = 9,274.98

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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.