Home / 13,961.13-20,917.08-7,372.77

Finding the Fourth Proportional to 13,961.13, 20,917.08 and 7,372.77

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Solution

The fourth proportional to 13,961.13, 20,917.08 and 7,372.77 is: 11,046.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,961.13 : 20,917.08 = 7,372.77 : x
  2. Step 2: Convert to fraction form
    13,961.13/20,917.08 = 7,372.77/x
  3. Step 3: Cross multiply
    13,961.13x = 20,917.08 × 7,372.77
  4. Step 4: Simplify right side
    13,961.13x = 154,216,819.91
  5. Step 5: Solve for x
    x = 154,216,819.91/13,961.13
  6. Step 6: Final answer
    x = 11,046.16

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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.