Home / 11,620.86-17,432.32-3,723.58

Finding the Fourth Proportional to 11,620.86, 17,432.32 and 3,723.58

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Solution

The fourth proportional to 11,620.86, 17,432.32 and 3,723.58 is: 5,585.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,620.86 : 17,432.32 = 3,723.58 : x
  2. Step 2: Convert to fraction form
    11,620.86/17,432.32 = 3,723.58/x
  3. Step 3: Cross multiply
    11,620.86x = 17,432.32 × 3,723.58
  4. Step 4: Simplify right side
    11,620.86x = 64,910,638.11
  5. Step 5: Solve for x
    x = 64,910,638.11/11,620.86
  6. Step 6: Final answer
    x = 5,585.70

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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.