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Finding the Third Proportional to 6,459.75 and 15,643.13

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Solution

The third proportional to 6,459.75 and 15,643.13 is: 37,881.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,459.75 : 15,643.13 = 15,643.13 : x
  2. Step 2: Convert to fraction form
    6,459.75/15,643.13 = 15,643.13/x
  3. Step 3: Cross multiply
    6,459.75x = 15,643.13 × 15,643.13
  4. Step 4: Simplify right side
    6,459.75x = 244,707,359.77
  5. Step 5: Solve for x
    x = 244,707,359.77/6,459.75
  6. Step 6: Final answer
    x = 37,881.86

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Why These Related Problems?

These problems maintain the same ratio (2.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.