Home / 11,067.12-16,605.24-8,120.60

Finding the Fourth Proportional to 11,067.12, 16,605.24 and 8,120.60

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Solution

The fourth proportional to 11,067.12, 16,605.24 and 8,120.60 is: 12,184.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,067.12 : 16,605.24 = 8,120.60 : x
  2. Step 2: Convert to fraction form
    11,067.12/16,605.24 = 8,120.60/x
  3. Step 3: Cross multiply
    11,067.12x = 16,605.24 × 8,120.60
  4. Step 4: Simplify right side
    11,067.12x = 134,844,460.74
  5. Step 5: Solve for x
    x = 134,844,460.74/11,067.12
  6. Step 6: Final answer
    x = 12,184.24

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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.