Home / 12,972.44-19,451.69-4,086.11

Finding the Fourth Proportional to 12,972.44, 19,451.69 and 4,086.11

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Solution

The fourth proportional to 12,972.44, 19,451.69 and 4,086.11 is: 6,126.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,972.44 : 19,451.69 = 4,086.11 : x
  2. Step 2: Convert to fraction form
    12,972.44/19,451.69 = 4,086.11/x
  3. Step 3: Cross multiply
    12,972.44x = 19,451.69 × 4,086.11
  4. Step 4: Simplify right side
    12,972.44x = 79,481,657.98
  5. Step 5: Solve for x
    x = 79,481,657.98/12,972.44
  6. Step 6: Final answer
    x = 6,126.97

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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.