Home / 8,965.06-13,447.65-3,121.66

Finding the Fourth Proportional to 8,965.06, 13,447.65 and 3,121.66

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Solution

The fourth proportional to 8,965.06, 13,447.65 and 3,121.66 is: 4,682.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,965.06 : 13,447.65 = 3,121.66 : x
  2. Step 2: Convert to fraction form
    8,965.06/13,447.65 = 3,121.66/x
  3. Step 3: Cross multiply
    8,965.06x = 13,447.65 × 3,121.66
  4. Step 4: Simplify right side
    8,965.06x = 41,978,923.86
  5. Step 5: Solve for x
    x = 41,978,923.86/8,965.06
  6. Step 6: Final answer
    x = 4,682.51

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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.