Home / 13,972.62-20,961.51-4,613.29

Finding the Fourth Proportional to 13,972.62, 20,961.51 and 4,613.29

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Solution

The fourth proportional to 13,972.62, 20,961.51 and 4,613.29 is: 6,920.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,972.62 : 20,961.51 = 4,613.29 : x
  2. Step 2: Convert to fraction form
    13,972.62/20,961.51 = 4,613.29/x
  3. Step 3: Cross multiply
    13,972.62x = 20,961.51 × 4,613.29
  4. Step 4: Simplify right side
    13,972.62x = 96,701,419.66
  5. Step 5: Solve for x
    x = 96,701,419.66/13,972.62
  6. Step 6: Final answer
    x = 6,920.78

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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.