Home / 9,161.68-13,748.46-3,317.80

Finding the Fourth Proportional to 9,161.68, 13,748.46 and 3,317.80

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Solution

The fourth proportional to 9,161.68, 13,748.46 and 3,317.80 is: 4,978.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,161.68 : 13,748.46 = 3,317.80 : x
  2. Step 2: Convert to fraction form
    9,161.68/13,748.46 = 3,317.80/x
  3. Step 3: Cross multiply
    9,161.68x = 13,748.46 × 3,317.80
  4. Step 4: Simplify right side
    9,161.68x = 45,614,640.59
  5. Step 5: Solve for x
    x = 45,614,640.59/9,161.68
  6. Step 6: Final answer
    x = 4,978.85

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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.