Home / 11,905.92-17,860.77-4,115.34

Finding the Fourth Proportional to 11,905.92, 17,860.77 and 4,115.34

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Solution

The fourth proportional to 11,905.92, 17,860.77 and 4,115.34 is: 6,173.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,905.92 : 17,860.77 = 4,115.34 : x
  2. Step 2: Convert to fraction form
    11,905.92/17,860.77 = 4,115.34/x
  3. Step 3: Cross multiply
    11,905.92x = 17,860.77 × 4,115.34
  4. Step 4: Simplify right side
    11,905.92x = 73,503,141.21
  5. Step 5: Solve for x
    x = 73,503,141.21/11,905.92
  6. Step 6: Final answer
    x = 6,173.66

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1.5x scale

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.