Home / 11,721.86-17,582.11-3,401.70

Finding the Fourth Proportional to 11,721.86, 17,582.11 and 3,401.70

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Solution

The fourth proportional to 11,721.86, 17,582.11 and 3,401.70 is: 5,102.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,721.86 : 17,582.11 = 3,401.70 : x
  2. Step 2: Convert to fraction form
    11,721.86/17,582.11 = 3,401.70/x
  3. Step 3: Cross multiply
    11,721.86x = 17,582.11 × 3,401.70
  4. Step 4: Simplify right side
    11,721.86x = 59,809,008.28
  5. Step 5: Solve for x
    x = 59,809,008.28/11,721.86
  6. Step 6: Final answer
    x = 5,102.35

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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.