Home / 13,396.72-20,078.96-4,956.49

Finding the Fourth Proportional to 13,396.72, 20,078.96 and 4,956.49

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Solution

The fourth proportional to 13,396.72, 20,078.96 and 4,956.49 is: 7,428.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,396.72 : 20,078.96 = 4,956.49 : x
  2. Step 2: Convert to fraction form
    13,396.72/20,078.96 = 4,956.49/x
  3. Step 3: Cross multiply
    13,396.72x = 20,078.96 × 4,956.49
  4. Step 4: Simplify right side
    13,396.72x = 99,521,221.00
  5. Step 5: Solve for x
    x = 99,521,221.00/13,396.72
  6. Step 6: Final answer
    x = 7,428.78

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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.