Home / 7,686.12-11,523.92-2,755.65

Finding the Fourth Proportional to 7,686.12, 11,523.92 and 2,755.65

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Solution

The fourth proportional to 7,686.12, 11,523.92 and 2,755.65 is: 4,131.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,686.12 : 11,523.92 = 2,755.65 : x
  2. Step 2: Convert to fraction form
    7,686.12/11,523.92 = 2,755.65/x
  3. Step 3: Cross multiply
    7,686.12x = 11,523.92 × 2,755.65
  4. Step 4: Simplify right side
    7,686.12x = 31,755,876.37
  5. Step 5: Solve for x
    x = 31,755,876.37/7,686.12
  6. Step 6: Final answer
    x = 4,131.59

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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.