Home / 12,759.30-19,140.21-3,994.38

Finding the Fourth Proportional to 12,759.30, 19,140.21 and 3,994.38

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Solution

The fourth proportional to 12,759.30, 19,140.21 and 3,994.38 is: 5,991.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,759.30 : 19,140.21 = 3,994.38 : x
  2. Step 2: Convert to fraction form
    12,759.30/19,140.21 = 3,994.38/x
  3. Step 3: Cross multiply
    12,759.30x = 19,140.21 × 3,994.38
  4. Step 4: Simplify right side
    12,759.30x = 76,453,272.02
  5. Step 5: Solve for x
    x = 76,453,272.02/12,759.30
  6. Step 6: Final answer
    x = 5,991.96

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.