Home / 7,425.72-11,139.66-3,961.08

Finding the Fourth Proportional to 7,425.72, 11,139.66 and 3,961.08

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Solution

The fourth proportional to 7,425.72, 11,139.66 and 3,961.08 is: 5,942.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,425.72 : 11,139.66 = 3,961.08 : x
  2. Step 2: Convert to fraction form
    7,425.72/11,139.66 = 3,961.08/x
  3. Step 3: Cross multiply
    7,425.72x = 11,139.66 × 3,961.08
  4. Step 4: Simplify right side
    7,425.72x = 44,125,084.43
  5. Step 5: Solve for x
    x = 44,125,084.43/7,425.72
  6. Step 6: Final answer
    x = 5,942.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.