Home / 12,769.18-19,147.16-5,743.17

Finding the Fourth Proportional to 12,769.18, 19,147.16 and 5,743.17

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Solution

The fourth proportional to 12,769.18, 19,147.16 and 5,743.17 is: 8,611.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,769.18 : 19,147.16 = 5,743.17 : x
  2. Step 2: Convert to fraction form
    12,769.18/19,147.16 = 5,743.17/x
  3. Step 3: Cross multiply
    12,769.18x = 19,147.16 × 5,743.17
  4. Step 4: Simplify right side
    12,769.18x = 109,965,409.26
  5. Step 5: Solve for x
    x = 109,965,409.26/12,769.18
  6. Step 6: Final answer
    x = 8,611.78

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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.