Home / 11,719.96-16,166.08-8,181.88

Finding the Fourth Proportional to 11,719.96, 16,166.08 and 8,181.88

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Solution

The fourth proportional to 11,719.96, 16,166.08 and 8,181.88 is: 11,285.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,719.96 : 16,166.08 = 8,181.88 : x
  2. Step 2: Convert to fraction form
    11,719.96/16,166.08 = 8,181.88/x
  3. Step 3: Cross multiply
    11,719.96x = 16,166.08 × 8,181.88
  4. Step 4: Simplify right side
    11,719.96x = 132,268,926.63
  5. Step 5: Solve for x
    x = 132,268,926.63/11,719.96
  6. Step 6: Final answer
    x = 11,285.78

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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.