Home / 12,759.09-19,138.64-3,994.69

Finding the Fourth Proportional to 12,759.09, 19,138.64 and 3,994.69

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Solution

The fourth proportional to 12,759.09, 19,138.64 and 3,994.69 is: 5,992.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,759.09 : 19,138.64 = 3,994.69 : x
  2. Step 2: Convert to fraction form
    12,759.09/19,138.64 = 3,994.69/x
  3. Step 3: Cross multiply
    12,759.09x = 19,138.64 × 3,994.69
  4. Step 4: Simplify right side
    12,759.09x = 76,452,866.00
  5. Step 5: Solve for x
    x = 76,452,866.00/12,759.09
  6. Step 6: Final answer
    x = 5,992.03

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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.