Home / 12,067.36-16,642.32-8,709.28

Finding the Fourth Proportional to 12,067.36, 16,642.32 and 8,709.28

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Solution

The fourth proportional to 12,067.36, 16,642.32 and 8,709.28 is: 12,011.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,067.36 : 16,642.32 = 8,709.28 : x
  2. Step 2: Convert to fraction form
    12,067.36/16,642.32 = 8,709.28/x
  3. Step 3: Cross multiply
    12,067.36x = 16,642.32 × 8,709.28
  4. Step 4: Simplify right side
    12,067.36x = 144,942,624.73
  5. Step 5: Solve for x
    x = 144,942,624.73/12,067.36
  6. Step 6: Final answer
    x = 12,011.13

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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.