Home / 13,947.05-20,892.33-6,905.86

Finding the Fourth Proportional to 13,947.05, 20,892.33 and 6,905.86

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Solution

The fourth proportional to 13,947.05, 20,892.33 and 6,905.86 is: 10,344.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,947.05 : 20,892.33 = 6,905.86 : x
  2. Step 2: Convert to fraction form
    13,947.05/20,892.33 = 6,905.86/x
  3. Step 3: Cross multiply
    13,947.05x = 20,892.33 × 6,905.86
  4. Step 4: Simplify right side
    13,947.05x = 144,279,453.82
  5. Step 5: Solve for x
    x = 144,279,453.82/13,947.05
  6. Step 6: Final answer
    x = 10,344.80

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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.