Home / 18,245.23-25,163.84-12,578.68

Finding the Fourth Proportional to 18,245.23, 25,163.84 and 12,578.68

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Solution

The fourth proportional to 18,245.23, 25,163.84 and 12,578.68 is: 17,348.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,245.23 : 25,163.84 = 12,578.68 : x
  2. Step 2: Convert to fraction form
    18,245.23/25,163.84 = 12,578.68/x
  3. Step 3: Cross multiply
    18,245.23x = 25,163.84 × 12,578.68
  4. Step 4: Simplify right side
    18,245.23x = 316,527,702.22
  5. Step 5: Solve for x
    x = 316,527,702.22/18,245.23
  6. Step 6: Final answer
    x = 17,348.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.