Home / 18,645.20-27,961.86-6,162.90

Finding the Fourth Proportional to 18,645.20, 27,961.86 and 6,162.90

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Solution

The fourth proportional to 18,645.20, 27,961.86 and 6,162.90 is: 9,242.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,645.20 : 27,961.86 = 6,162.90 : x
  2. Step 2: Convert to fraction form
    18,645.20/27,961.86 = 6,162.90/x
  3. Step 3: Cross multiply
    18,645.20x = 27,961.86 × 6,162.90
  4. Step 4: Simplify right side
    18,645.20x = 172,326,187.87
  5. Step 5: Solve for x
    x = 172,326,187.87/18,645.20
  6. Step 6: Final answer
    x = 9,242.39

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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.