Home / 12,759.96-19,139.94-3,994.92

Finding the Fourth Proportional to 12,759.96, 19,139.94 and 3,994.92

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Solution

The fourth proportional to 12,759.96, 19,139.94 and 3,994.92 is: 5,992.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,759.96 : 19,139.94 = 3,994.92 : x
  2. Step 2: Convert to fraction form
    12,759.96/19,139.94 = 3,994.92/x
  3. Step 3: Cross multiply
    12,759.96x = 19,139.94 × 3,994.92
  4. Step 4: Simplify right side
    12,759.96x = 76,462,529.10
  5. Step 5: Solve for x
    x = 76,462,529.10/12,759.96
  6. Step 6: Final answer
    x = 5,992.38

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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.