Home / 13,944.90-20,911.86-5,623.38

Finding the Fourth Proportional to 13,944.90, 20,911.86 and 5,623.38

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Solution

The fourth proportional to 13,944.90, 20,911.86 and 5,623.38 is: 8,432.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,944.90 : 20,911.86 = 5,623.38 : x
  2. Step 2: Convert to fraction form
    13,944.90/20,911.86 = 5,623.38/x
  3. Step 3: Cross multiply
    13,944.90x = 20,911.86 × 5,623.38
  4. Step 4: Simplify right side
    13,944.90x = 117,595,335.29
  5. Step 5: Solve for x
    x = 117,595,335.29/13,944.90
  6. Step 6: Final answer
    x = 8,432.86

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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.