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Finding the Third Proportional to 11,889.91 and 18,281.95

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Solution

The third proportional to 11,889.91 and 18,281.95 is: 28,110.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,889.91 : 18,281.95 = 18,281.95 : x
  2. Step 2: Convert to fraction form
    11,889.91/18,281.95 = 18,281.95/x
  3. Step 3: Cross multiply
    11,889.91x = 18,281.95 × 18,281.95
  4. Step 4: Simplify right side
    11,889.91x = 334,229,810.06
  5. Step 5: Solve for x
    x = 334,229,810.06/11,889.91
  6. Step 6: Final answer
    x = 28,110.36

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.