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Finding the Third Proportional to 9,840 and 14,610

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Solution

The third proportional to 9,840 and 14,610 is: 21,692.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,840 : 14,610 = 14,610 : x
  2. Step 2: Convert to fraction form
    9,840/14,610 = 14,610/x
  3. Step 3: Cross multiply
    9,840x = 14,610 × 14,610
  4. Step 4: Simplify right side
    9,840x = 213,452,100
  5. Step 5: Solve for x
    x = 213,452,100/9,840
  6. Step 6: Final answer
    x = 21,692.29

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.