Home / 12,181.34-16,811.35-6,876.04

Finding the Fourth Proportional to 12,181.34, 16,811.35 and 6,876.04

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Solution

The fourth proportional to 12,181.34, 16,811.35 and 6,876.04 is: 9,489.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,181.34 : 16,811.35 = 6,876.04 : x
  2. Step 2: Convert to fraction form
    12,181.34/16,811.35 = 6,876.04/x
  3. Step 3: Cross multiply
    12,181.34x = 16,811.35 × 6,876.04
  4. Step 4: Simplify right side
    12,181.34x = 115,595,487.36
  5. Step 5: Solve for x
    x = 115,595,487.36/12,181.34
  6. Step 6: Final answer
    x = 9,489.56

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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.