Home / 12,761.66-19,142.76-3,996.38

Finding the Fourth Proportional to 12,761.66, 19,142.76 and 3,996.38

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Solution

The fourth proportional to 12,761.66, 19,142.76 and 3,996.38 is: 5,994.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,761.66 : 19,142.76 = 3,996.38 : x
  2. Step 2: Convert to fraction form
    12,761.66/19,142.76 = 3,996.38/x
  3. Step 3: Cross multiply
    12,761.66x = 19,142.76 × 3,996.38
  4. Step 4: Simplify right side
    12,761.66x = 76,501,743.21
  5. Step 5: Solve for x
    x = 76,501,743.21/12,761.66
  6. Step 6: Final answer
    x = 5,994.65

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1.5x scale

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.