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Finding the Third Proportional to 6,129 and 11,407.50

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Solution

The third proportional to 6,129 and 11,407.50 is: 21,232.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,129 : 11,407.50 = 11,407.50 : x
  2. Step 2: Convert to fraction form
    6,129/11,407.50 = 11,407.50/x
  3. Step 3: Cross multiply
    6,129x = 11,407.50 × 11,407.50
  4. Step 4: Simplify right side
    6,129x = 130,131,056.25
  5. Step 5: Solve for x
    x = 130,131,056.25/6,129
  6. Step 6: Final answer
    x = 21,232.02

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Why These Related Problems?

These problems maintain the same ratio (1.86) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.