Home / 18,734.40-25,823.42-12,682.74

Finding the Fourth Proportional to 18,734.40, 25,823.42 and 12,682.74

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Solution

The fourth proportional to 18,734.40, 25,823.42 and 12,682.74 is: 17,481.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,734.40 : 25,823.42 = 12,682.74 : x
  2. Step 2: Convert to fraction form
    18,734.40/25,823.42 = 12,682.74/x
  3. Step 3: Cross multiply
    18,734.40x = 25,823.42 × 12,682.74
  4. Step 4: Simplify right side
    18,734.40x = 327,511,658.36
  5. Step 5: Solve for x
    x = 327,511,658.36/18,734.40
  6. Step 6: Final answer
    x = 17,481.83

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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.