Home / 7,763.12-11,642.16-3,379.28

Finding the Fourth Proportional to 7,763.12, 11,642.16 and 3,379.28

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Solution

The fourth proportional to 7,763.12, 11,642.16 and 3,379.28 is: 5,067.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,763.12 : 11,642.16 = 3,379.28 : x
  2. Step 2: Convert to fraction form
    7,763.12/11,642.16 = 3,379.28/x
  3. Step 3: Cross multiply
    7,763.12x = 11,642.16 × 3,379.28
  4. Step 4: Simplify right side
    7,763.12x = 39,342,118.44
  5. Step 5: Solve for x
    x = 39,342,118.44/7,763.12
  6. Step 6: Final answer
    x = 5,067.82

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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.