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Finding the Third Proportional to 6,370 and 11,480

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Solution

The third proportional to 6,370 and 11,480 is: 20,689.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,370 : 11,480 = 11,480 : x
  2. Step 2: Convert to fraction form
    6,370/11,480 = 11,480/x
  3. Step 3: Cross multiply
    6,370x = 11,480 × 11,480
  4. Step 4: Simplify right side
    6,370x = 131,790,400
  5. Step 5: Solve for x
    x = 131,790,400/6,370
  6. Step 6: Final answer
    x = 20,689.23

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Why These Related Problems?

These problems maintain the same ratio (1.80) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.