Home / 13,784.74-20,676.97-3,396.49

Finding the Fourth Proportional to 13,784.74, 20,676.97 and 3,396.49

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Solution

The fourth proportional to 13,784.74, 20,676.97 and 3,396.49 is: 5,094.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,784.74 : 20,676.97 = 3,396.49 : x
  2. Step 2: Convert to fraction form
    13,784.74/20,676.97 = 3,396.49/x
  3. Step 3: Cross multiply
    13,784.74x = 20,676.97 × 3,396.49
  4. Step 4: Simplify right side
    13,784.74x = 70,229,121.84
  5. Step 5: Solve for x
    x = 70,229,121.84/13,784.74
  6. Step 6: Final answer
    x = 5,094.70

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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.