Home / 11,628.46-17,410.74-8,121.97

Finding the Fourth Proportional to 11,628.46, 17,410.74 and 8,121.97

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Solution

The fourth proportional to 11,628.46, 17,410.74 and 8,121.97 is: 12,160.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,628.46 : 17,410.74 = 8,121.97 : x
  2. Step 2: Convert to fraction form
    11,628.46/17,410.74 = 8,121.97/x
  3. Step 3: Cross multiply
    11,628.46x = 17,410.74 × 8,121.97
  4. Step 4: Simplify right side
    11,628.46x = 141,409,507.96
  5. Step 5: Solve for x
    x = 141,409,507.96/11,628.46
  6. Step 6: Final answer
    x = 12,160.64

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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.