Home / 18,998.02-28,458.15-11,183.14

Finding the Fourth Proportional to 18,998.02, 28,458.15 and 11,183.14

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Solution

The fourth proportional to 18,998.02, 28,458.15 and 11,183.14 is: 16,751.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,998.02 : 28,458.15 = 11,183.14 : x
  2. Step 2: Convert to fraction form
    18,998.02/28,458.15 = 11,183.14/x
  3. Step 3: Cross multiply
    18,998.02x = 28,458.15 × 11,183.14
  4. Step 4: Simplify right side
    18,998.02x = 318,251,475.59
  5. Step 5: Solve for x
    x = 318,251,475.59/18,998.02
  6. Step 6: Final answer
    x = 16,751.82

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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.