Home / 12,181.94-16,811.09-6,876.64

Finding the Fourth Proportional to 12,181.94, 16,811.09 and 6,876.64

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Solution

The fourth proportional to 12,181.94, 16,811.09 and 6,876.64 is: 9,489.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,181.94 : 16,811.09 = 6,876.64 : x
  2. Step 2: Convert to fraction form
    12,181.94/16,811.09 = 6,876.64/x
  3. Step 3: Cross multiply
    12,181.94x = 16,811.09 × 6,876.64
  4. Step 4: Simplify right side
    12,181.94x = 115,603,813.94
  5. Step 5: Solve for x
    x = 115,603,813.94/12,181.94
  6. Step 6: Final answer
    x = 9,489.77

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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.