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Finding the Third Proportional to 6,491.81 and 9,927.56

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Solution

The third proportional to 6,491.81 and 9,927.56 is: 15,181.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,491.81 : 9,927.56 = 9,927.56 : x
  2. Step 2: Convert to fraction form
    6,491.81/9,927.56 = 9,927.56/x
  3. Step 3: Cross multiply
    6,491.81x = 9,927.56 × 9,927.56
  4. Step 4: Simplify right side
    6,491.81x = 98,556,497.19
  5. Step 5: Solve for x
    x = 98,556,497.19/6,491.81
  6. Step 6: Final answer
    x = 15,181.66

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.