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Finding the Third Proportional to 5,259 and 8,230.50

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Solution

The third proportional to 5,259 and 8,230.50 is: 12,880.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,259 : 8,230.50 = 8,230.50 : x
  2. Step 2: Convert to fraction form
    5,259/8,230.50 = 8,230.50/x
  3. Step 3: Cross multiply
    5,259x = 8,230.50 × 8,230.50
  4. Step 4: Simplify right side
    5,259x = 67,741,130.25
  5. Step 5: Solve for x
    x = 67,741,130.25/5,259
  6. Step 6: Final answer
    x = 12,880.99

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.