Home / 11,221.78-15,486.14-6,186.18

Finding the Fourth Proportional to 11,221.78, 15,486.14 and 6,186.18

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Solution

The fourth proportional to 11,221.78, 15,486.14 and 6,186.18 is: 8,536.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,221.78 : 15,486.14 = 6,186.18 : x
  2. Step 2: Convert to fraction form
    11,221.78/15,486.14 = 6,186.18/x
  3. Step 3: Cross multiply
    11,221.78x = 15,486.14 × 6,186.18
  4. Step 4: Simplify right side
    11,221.78x = 95,800,049.55
  5. Step 5: Solve for x
    x = 95,800,049.55/11,221.78
  6. Step 6: Final answer
    x = 8,536.97

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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.