Home / 18,588.24-25,654.41-12,919.86

Finding the Fourth Proportional to 18,588.24, 25,654.41 and 12,919.86

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Solution

The fourth proportional to 18,588.24, 25,654.41 and 12,919.86 is: 17,831.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,588.24 : 25,654.41 = 12,919.86 : x
  2. Step 2: Convert to fraction form
    18,588.24/25,654.41 = 12,919.86/x
  3. Step 3: Cross multiply
    18,588.24x = 25,654.41 × 12,919.86
  4. Step 4: Simplify right side
    18,588.24x = 331,451,385.58
  5. Step 5: Solve for x
    x = 331,451,385.58/18,588.24
  6. Step 6: Final answer
    x = 17,831.24

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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.