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Finding the Third Proportional to 10,889.81 and 15,335.63

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Solution

The third proportional to 10,889.81 and 15,335.63 is: 21,596.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,889.81 : 15,335.63 = 15,335.63 : x
  2. Step 2: Convert to fraction form
    10,889.81/15,335.63 = 15,335.63/x
  3. Step 3: Cross multiply
    10,889.81x = 15,335.63 × 15,335.63
  4. Step 4: Simplify right side
    10,889.81x = 235,181,394.14
  5. Step 5: Solve for x
    x = 235,181,394.14/10,889.81
  6. Step 6: Final answer
    x = 21,596.46

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.