Home / 13,917.74-20,877.16-3,529.76

Finding the Fourth Proportional to 13,917.74, 20,877.16 and 3,529.76

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Solution

The fourth proportional to 13,917.74, 20,877.16 and 3,529.76 is: 5,294.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,917.74 : 20,877.16 = 3,529.76 : x
  2. Step 2: Convert to fraction form
    13,917.74/20,877.16 = 3,529.76/x
  3. Step 3: Cross multiply
    13,917.74x = 20,877.16 × 3,529.76
  4. Step 4: Simplify right side
    13,917.74x = 73,691,364.28
  5. Step 5: Solve for x
    x = 73,691,364.28/13,917.74
  6. Step 6: Final answer
    x = 5,294.78

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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.