Home / 12,764.36-19,145.28-3,999.35

Finding the Fourth Proportional to 12,764.36, 19,145.28 and 3,999.35

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Solution

The fourth proportional to 12,764.36, 19,145.28 and 3,999.35 is: 5,998.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,764.36 : 19,145.28 = 3,999.35 : x
  2. Step 2: Convert to fraction form
    12,764.36/19,145.28 = 3,999.35/x
  3. Step 3: Cross multiply
    12,764.36x = 19,145.28 × 3,999.35
  4. Step 4: Simplify right side
    12,764.36x = 76,568,675.57
  5. Step 5: Solve for x
    x = 76,568,675.57/12,764.36
  6. Step 6: Final answer
    x = 5,998.63

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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.