Home / 18,512.65-25,520.88-13,198.24

Finding the Fourth Proportional to 18,512.65, 25,520.88 and 13,198.24

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Solution

The fourth proportional to 18,512.65, 25,520.88 and 13,198.24 is: 18,194.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,512.65 : 25,520.88 = 13,198.24 : x
  2. Step 2: Convert to fraction form
    18,512.65/25,520.88 = 13,198.24/x
  3. Step 3: Cross multiply
    18,512.65x = 25,520.88 × 13,198.24
  4. Step 4: Simplify right side
    18,512.65x = 336,830,562.85
  5. Step 5: Solve for x
    x = 336,830,562.85/18,512.65
  6. Step 6: Final answer
    x = 18,194.62

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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.