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Finding the Third Proportional to 5,190 and 12,084

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Solution

The third proportional to 5,190 and 12,084 is: 28,135.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190 : 12,084 = 12,084 : x
  2. Step 2: Convert to fraction form
    5,190/12,084 = 12,084/x
  3. Step 3: Cross multiply
    5,190x = 12,084 × 12,084
  4. Step 4: Simplify right side
    5,190x = 146,023,056
  5. Step 5: Solve for x
    x = 146,023,056/5,190
  6. Step 6: Final answer
    x = 28,135.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.