Home / 8,965.26-13,449.69-3,418.65

Finding the Fourth Proportional to 8,965.26, 13,449.69 and 3,418.65

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Solution

The fourth proportional to 8,965.26, 13,449.69 and 3,418.65 is: 5,128.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,965.26 : 13,449.69 = 3,418.65 : x
  2. Step 2: Convert to fraction form
    8,965.26/13,449.69 = 3,418.65/x
  3. Step 3: Cross multiply
    8,965.26x = 13,449.69 × 3,418.65
  4. Step 4: Simplify right side
    8,965.26x = 45,979,782.72
  5. Step 5: Solve for x
    x = 45,979,782.72/8,965.26
  6. Step 6: Final answer
    x = 5,128.66

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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.