Home / 11,781.18-17,671.91-3,015.86

Finding the Fourth Proportional to 11,781.18, 17,671.91 and 3,015.86

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Solution

The fourth proportional to 11,781.18, 17,671.91 and 3,015.86 is: 4,523.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,781.18 : 17,671.91 = 3,015.86 : x
  2. Step 2: Convert to fraction form
    11,781.18/17,671.91 = 3,015.86/x
  3. Step 3: Cross multiply
    11,781.18x = 17,671.91 × 3,015.86
  4. Step 4: Simplify right side
    11,781.18x = 53,295,903.05
  5. Step 5: Solve for x
    x = 53,295,903.05/11,781.18
  6. Step 6: Final answer
    x = 4,523.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.