Home / 12,761.67-19,142.51-3,997.27

Finding the Fourth Proportional to 12,761.67, 19,142.51 and 3,997.27

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Solution

The fourth proportional to 12,761.67, 19,142.51 and 3,997.27 is: 5,995.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,761.67 : 19,142.51 = 3,997.27 : x
  2. Step 2: Convert to fraction form
    12,761.67/19,142.51 = 3,997.27/x
  3. Step 3: Cross multiply
    12,761.67x = 19,142.51 × 3,997.27
  4. Step 4: Simplify right side
    12,761.67x = 76,517,699.70
  5. Step 5: Solve for x
    x = 76,517,699.70/12,761.67
  6. Step 6: Final answer
    x = 5,995.90

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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.