Home / 12,944.31-19,416.46-7,137.82

Finding the Fourth Proportional to 12,944.31, 19,416.46 and 7,137.82

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Solution

The fourth proportional to 12,944.31, 19,416.46 and 7,137.82 is: 10,706.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,944.31 : 19,416.46 = 7,137.82 : x
  2. Step 2: Convert to fraction form
    12,944.31/19,416.46 = 7,137.82/x
  3. Step 3: Cross multiply
    12,944.31x = 19,416.46 × 7,137.82
  4. Step 4: Simplify right side
    12,944.31x = 138,591,216.33
  5. Step 5: Solve for x
    x = 138,591,216.33/12,944.31
  6. Step 6: Final answer
    x = 10,706.73

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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.