Home / 12,705.26-19,079.75-6,865.97

Finding the Fourth Proportional to 12,705.26, 19,079.75 and 6,865.97

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Solution

The fourth proportional to 12,705.26, 19,079.75 and 6,865.97 is: 10,310.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,705.26 : 19,079.75 = 6,865.97 : x
  2. Step 2: Convert to fraction form
    12,705.26/19,079.75 = 6,865.97/x
  3. Step 3: Cross multiply
    12,705.26x = 19,079.75 × 6,865.97
  4. Step 4: Simplify right side
    12,705.26x = 131,000,912.87
  5. Step 5: Solve for x
    x = 131,000,912.87/12,705.26
  6. Step 6: Final answer
    x = 10,310.77

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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.