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Finding the Fourth Proportional to 11,182, 15,431.16 and 6,214

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Solution

The fourth proportional to 11,182, 15,431.16 and 6,214 is: 8,575.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,182 : 15,431.16 = 6,214 : x
  2. Step 2: Convert to fraction form
    11,182/15,431.16 = 6,214/x
  3. Step 3: Cross multiply
    11,182x = 15,431.16 × 6,214
  4. Step 4: Simplify right side
    11,182x = 95,889,228.24
  5. Step 5: Solve for x
    x = 95,889,228.24/11,182
  6. Step 6: Final answer
    x = 8,575.32

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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.