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Finding the Third Proportional to 6,138 and 9,439.50

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Solution

The third proportional to 6,138 and 9,439.50 is: 14,516.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,138 : 9,439.50 = 9,439.50 : x
  2. Step 2: Convert to fraction form
    6,138/9,439.50 = 9,439.50/x
  3. Step 3: Cross multiply
    6,138x = 9,439.50 × 9,439.50
  4. Step 4: Simplify right side
    6,138x = 89,104,160.25
  5. Step 5: Solve for x
    x = 89,104,160.25/6,138
  6. Step 6: Final answer
    x = 14,516.81

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.