Home / 7,708.12-11,563.38-2,512.78

Finding the Fourth Proportional to 7,708.12, 11,563.38 and 2,512.78

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Solution

The fourth proportional to 7,708.12, 11,563.38 and 2,512.78 is: 3,769.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,708.12 : 11,563.38 = 2,512.78 : x
  2. Step 2: Convert to fraction form
    7,708.12/11,563.38 = 2,512.78/x
  3. Step 3: Cross multiply
    7,708.12x = 11,563.38 × 2,512.78
  4. Step 4: Simplify right side
    7,708.12x = 29,056,230.00
  5. Step 5: Solve for x
    x = 29,056,230.00/7,708.12
  6. Step 6: Final answer
    x = 3,769.56

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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.