Home / 11,878.11-16,392.36-6,843.12

Finding the Fourth Proportional to 11,878.11, 16,392.36 and 6,843.12

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Solution

The fourth proportional to 11,878.11, 16,392.36 and 6,843.12 is: 9,443.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,878.11 : 16,392.36 = 6,843.12 : x
  2. Step 2: Convert to fraction form
    11,878.11/16,392.36 = 6,843.12/x
  3. Step 3: Cross multiply
    11,878.11x = 16,392.36 × 6,843.12
  4. Step 4: Simplify right side
    11,878.11x = 112,174,886.56
  5. Step 5: Solve for x
    x = 112,174,886.56/11,878.11
  6. Step 6: Final answer
    x = 9,443.83

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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.