Home / 12,067.78-18,090.31-6,512.80

Finding the Fourth Proportional to 12,067.78, 18,090.31 and 6,512.80

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Solution

The fourth proportional to 12,067.78, 18,090.31 and 6,512.80 is: 9,763.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,067.78 : 18,090.31 = 6,512.80 : x
  2. Step 2: Convert to fraction form
    12,067.78/18,090.31 = 6,512.80/x
  3. Step 3: Cross multiply
    12,067.78x = 18,090.31 × 6,512.80
  4. Step 4: Simplify right side
    12,067.78x = 117,818,570.97
  5. Step 5: Solve for x
    x = 117,818,570.97/12,067.78
  6. Step 6: Final answer
    x = 9,763.07

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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.