Home / 12,067.15-16,653.28-6,690.16

Finding the Fourth Proportional to 12,067.15, 16,653.28 and 6,690.16

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Solution

The fourth proportional to 12,067.15, 16,653.28 and 6,690.16 is: 9,232.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,067.15 : 16,653.28 = 6,690.16 : x
  2. Step 2: Convert to fraction form
    12,067.15/16,653.28 = 6,690.16/x
  3. Step 3: Cross multiply
    12,067.15x = 16,653.28 × 6,690.16
  4. Step 4: Simplify right side
    12,067.15x = 111,413,107.72
  5. Step 5: Solve for x
    x = 111,413,107.72/12,067.15
  6. Step 6: Final answer
    x = 9,232.76

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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.