Home / 18,759.68-28,147.37-8,224.26

Finding the Fourth Proportional to 18,759.68, 28,147.37 and 8,224.26

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Solution

The fourth proportional to 18,759.68, 28,147.37 and 8,224.26 is: 12,339.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,759.68 : 28,147.37 = 8,224.26 : x
  2. Step 2: Convert to fraction form
    18,759.68/28,147.37 = 8,224.26/x
  3. Step 3: Cross multiply
    18,759.68x = 28,147.37 × 8,224.26
  4. Step 4: Simplify right side
    18,759.68x = 231,491,248.07
  5. Step 5: Solve for x
    x = 231,491,248.07/18,759.68
  6. Step 6: Final answer
    x = 12,339.83

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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.