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Finding the Third Proportional to 6,912 and 10,318.50

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Solution

The third proportional to 6,912 and 10,318.50 is: 15,403.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,912 : 10,318.50 = 10,318.50 : x
  2. Step 2: Convert to fraction form
    6,912/10,318.50 = 10,318.50/x
  3. Step 3: Cross multiply
    6,912x = 10,318.50 × 10,318.50
  4. Step 4: Simplify right side
    6,912x = 106,471,442.25
  5. Step 5: Solve for x
    x = 106,471,442.25/6,912
  6. Step 6: Final answer
    x = 15,403.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.