Home / 10,945.19-16,387.90-8,268.93

Finding the Fourth Proportional to 10,945.19, 16,387.90 and 8,268.93

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Solution

The fourth proportional to 10,945.19, 16,387.90 and 8,268.93 is: 12,380.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,945.19 : 16,387.90 = 8,268.93 : x
  2. Step 2: Convert to fraction form
    10,945.19/16,387.90 = 8,268.93/x
  3. Step 3: Cross multiply
    10,945.19x = 16,387.90 × 8,268.93
  4. Step 4: Simplify right side
    10,945.19x = 135,510,377.27
  5. Step 5: Solve for x
    x = 135,510,377.27/10,945.19
  6. Step 6: Final answer
    x = 12,380.81

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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.