Home / 12,769.49-19,156.94-4,005.29

Finding the Fourth Proportional to 12,769.49, 19,156.94 and 4,005.29

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Solution

The fourth proportional to 12,769.49, 19,156.94 and 4,005.29 is: 6,008.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,769.49 : 19,156.94 = 4,005.29 : x
  2. Step 2: Convert to fraction form
    12,769.49/19,156.94 = 4,005.29/x
  3. Step 3: Cross multiply
    12,769.49x = 19,156.94 × 4,005.29
  4. Step 4: Simplify right side
    12,769.49x = 76,729,143.10
  5. Step 5: Solve for x
    x = 76,729,143.10/12,769.49
  6. Step 6: Final answer
    x = 6,008.79

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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.