Home / 11,290.34-16,939.96-8,174.27

Finding the Fourth Proportional to 11,290.34, 16,939.96 and 8,174.27

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Solution

The fourth proportional to 11,290.34, 16,939.96 and 8,174.27 is: 12,264.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,290.34 : 16,939.96 = 8,174.27 : x
  2. Step 2: Convert to fraction form
    11,290.34/16,939.96 = 8,174.27/x
  3. Step 3: Cross multiply
    11,290.34x = 16,939.96 × 8,174.27
  4. Step 4: Simplify right side
    11,290.34x = 138,471,701.69
  5. Step 5: Solve for x
    x = 138,471,701.69/11,290.34
  6. Step 6: Final answer
    x = 12,264.62

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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.