Home / 18,854.34-25,994.97-11,778.18

Finding the Fourth Proportional to 18,854.34, 25,994.97 and 11,778.18

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Solution

The fourth proportional to 18,854.34, 25,994.97 and 11,778.18 is: 16,238.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,854.34 : 25,994.97 = 11,778.18 : x
  2. Step 2: Convert to fraction form
    18,854.34/25,994.97 = 11,778.18/x
  3. Step 3: Cross multiply
    18,854.34x = 25,994.97 × 11,778.18
  4. Step 4: Simplify right side
    18,854.34x = 306,173,435.75
  5. Step 5: Solve for x
    x = 306,173,435.75/18,854.34
  6. Step 6: Final answer
    x = 16,238.88

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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.