Home / 11,420.43-17,120.26-4,395.96

Finding the Fourth Proportional to 11,420.43, 17,120.26 and 4,395.96

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Solution

The fourth proportional to 11,420.43, 17,120.26 and 4,395.96 is: 6,589.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,420.43 : 17,120.26 = 4,395.96 : x
  2. Step 2: Convert to fraction form
    11,420.43/17,120.26 = 4,395.96/x
  3. Step 3: Cross multiply
    11,420.43x = 17,120.26 × 4,395.96
  4. Step 4: Simplify right side
    11,420.43x = 75,259,978.15
  5. Step 5: Solve for x
    x = 75,259,978.15/11,420.43
  6. Step 6: Final answer
    x = 6,589.94

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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.