Home / 11,420.69-17,129.13-4,023.41

Finding the Fourth Proportional to 11,420.69, 17,129.13 and 4,023.41

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Solution

The fourth proportional to 11,420.69, 17,129.13 and 4,023.41 is: 6,034.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,420.69 : 17,129.13 = 4,023.41 : x
  2. Step 2: Convert to fraction form
    11,420.69/17,129.13 = 4,023.41/x
  3. Step 3: Cross multiply
    11,420.69x = 17,129.13 × 4,023.41
  4. Step 4: Simplify right side
    11,420.69x = 68,917,512.93
  5. Step 5: Solve for x
    x = 68,917,512.93/11,420.69
  6. Step 6: Final answer
    x = 6,034.44

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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.