Home / 11,621.14-17,432.94-3,720.83

Finding the Fourth Proportional to 11,621.14, 17,432.94 and 3,720.83

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Solution

The fourth proportional to 11,621.14, 17,432.94 and 3,720.83 is: 5,581.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,621.14 : 17,432.94 = 3,720.83 : x
  2. Step 2: Convert to fraction form
    11,621.14/17,432.94 = 3,720.83/x
  3. Step 3: Cross multiply
    11,621.14x = 17,432.94 × 3,720.83
  4. Step 4: Simplify right side
    11,621.14x = 64,864,971.86
  5. Step 5: Solve for x
    x = 64,864,971.86/11,621.14
  6. Step 6: Final answer
    x = 5,581.64

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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.