Home / 7,974.12-11,961.48-2,130.73

Finding the Fourth Proportional to 7,974.12, 11,961.48 and 2,130.73

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Solution

The fourth proportional to 7,974.12, 11,961.48 and 2,130.73 is: 3,196.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,974.12 : 11,961.48 = 2,130.73 : x
  2. Step 2: Convert to fraction form
    7,974.12/11,961.48 = 2,130.73/x
  3. Step 3: Cross multiply
    7,974.12x = 11,961.48 × 2,130.73
  4. Step 4: Simplify right side
    7,974.12x = 25,486,684.28
  5. Step 5: Solve for x
    x = 25,486,684.28/7,974.12
  6. Step 6: Final answer
    x = 3,196.18

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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.