Home / 13,912.62-20,874.06-6,519.48

Finding the Fourth Proportional to 13,912.62, 20,874.06 and 6,519.48

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Solution

The fourth proportional to 13,912.62, 20,874.06 and 6,519.48 is: 9,781.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,912.62 : 20,874.06 = 6,519.48 : x
  2. Step 2: Convert to fraction form
    13,912.62/20,874.06 = 6,519.48/x
  3. Step 3: Cross multiply
    13,912.62x = 20,874.06 × 6,519.48
  4. Step 4: Simplify right side
    13,912.62x = 136,088,016.69
  5. Step 5: Solve for x
    x = 136,088,016.69/13,912.62
  6. Step 6: Final answer
    x = 9,781.62

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1.5x scale

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.