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Finding the Fourth Proportional to 15,227.16, 21,014.04 and 8,514

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Solution

The fourth proportional to 15,227.16, 21,014.04 and 8,514 is: 11,749.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,227.16 : 21,014.04 = 8,514 : x
  2. Step 2: Convert to fraction form
    15,227.16/21,014.04 = 8,514/x
  3. Step 3: Cross multiply
    15,227.16x = 21,014.04 × 8,514
  4. Step 4: Simplify right side
    15,227.16x = 178,913,536.56
  5. Step 5: Solve for x
    x = 178,913,536.56/15,227.16
  6. Step 6: Final answer
    x = 11,749.63

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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.