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Finding the Third Proportional to 6,773.63 and 12,129.75

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Solution

The third proportional to 6,773.63 and 12,129.75 is: 21,721.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,773.63 : 12,129.75 = 12,129.75 : x
  2. Step 2: Convert to fraction form
    6,773.63/12,129.75 = 12,129.75/x
  3. Step 3: Cross multiply
    6,773.63x = 12,129.75 × 12,129.75
  4. Step 4: Simplify right side
    6,773.63x = 147,130,835.06
  5. Step 5: Solve for x
    x = 147,130,835.06/6,773.63
  6. Step 6: Final answer
    x = 21,721.14

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Why These Related Problems?

These problems maintain the same ratio (1.79) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.