Home / 15,183.30-20,949.39-9,214.83

Finding the Fourth Proportional to 15,183.30, 20,949.39 and 9,214.83

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Solution

The fourth proportional to 15,183.30, 20,949.39 and 9,214.83 is: 12,714.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,183.30 : 20,949.39 = 9,214.83 : x
  2. Step 2: Convert to fraction form
    15,183.30/20,949.39 = 9,214.83/x
  3. Step 3: Cross multiply
    15,183.30x = 20,949.39 × 9,214.83
  4. Step 4: Simplify right side
    15,183.30x = 193,045,067.45
  5. Step 5: Solve for x
    x = 193,045,067.45/15,183.30
  6. Step 6: Final answer
    x = 12,714.30

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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.