Home / 12,919.26-19,370.09-6,578.55

Finding the Fourth Proportional to 12,919.26, 19,370.09 and 6,578.55

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Solution

The fourth proportional to 12,919.26, 19,370.09 and 6,578.55 is: 9,863.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,919.26 : 19,370.09 = 6,578.55 : x
  2. Step 2: Convert to fraction form
    12,919.26/19,370.09 = 6,578.55/x
  3. Step 3: Cross multiply
    12,919.26x = 19,370.09 × 6,578.55
  4. Step 4: Simplify right side
    12,919.26x = 127,427,072.68
  5. Step 5: Solve for x
    x = 127,427,072.68/12,919.26
  6. Step 6: Final answer
    x = 9,863.34

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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.