Home / 11,669.57-17,490.23-8,375.86

Finding the Fourth Proportional to 11,669.57, 17,490.23 and 8,375.86

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Solution

The fourth proportional to 11,669.57, 17,490.23 and 8,375.86 is: 12,553.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,669.57 : 17,490.23 = 8,375.86 : x
  2. Step 2: Convert to fraction form
    11,669.57/17,490.23 = 8,375.86/x
  3. Step 3: Cross multiply
    11,669.57x = 17,490.23 × 8,375.86
  4. Step 4: Simplify right side
    11,669.57x = 146,495,717.85
  5. Step 5: Solve for x
    x = 146,495,717.85/11,669.57
  6. Step 6: Final answer
    x = 12,553.65

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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.