Home / 12,367.36-17,067.12-6,778.48

Finding the Fourth Proportional to 12,367.36, 17,067.12 and 6,778.48

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Solution

The fourth proportional to 12,367.36, 17,067.12 and 6,778.48 is: 9,354.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,367.36 : 17,067.12 = 6,778.48 : x
  2. Step 2: Convert to fraction form
    12,367.36/17,067.12 = 6,778.48/x
  3. Step 3: Cross multiply
    12,367.36x = 17,067.12 × 6,778.48
  4. Step 4: Simplify right side
    12,367.36x = 115,689,131.58
  5. Step 5: Solve for x
    x = 115,689,131.58/12,367.36
  6. Step 6: Final answer
    x = 9,354.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.