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Finding the Third Proportional to 6,999.75 and 15,563.81

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Solution

The third proportional to 6,999.75 and 15,563.81 is: 34,605.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,999.75 : 15,563.81 = 15,563.81 : x
  2. Step 2: Convert to fraction form
    6,999.75/15,563.81 = 15,563.81/x
  3. Step 3: Cross multiply
    6,999.75x = 15,563.81 × 15,563.81
  4. Step 4: Simplify right side
    6,999.75x = 242,232,259.54
  5. Step 5: Solve for x
    x = 242,232,259.54/6,999.75
  6. Step 6: Final answer
    x = 34,605.84

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.