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Finding the Third Proportional to 6,120 and 11,556

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Solution

The third proportional to 6,120 and 11,556 is: 21,820.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,120 : 11,556 = 11,556 : x
  2. Step 2: Convert to fraction form
    6,120/11,556 = 11,556/x
  3. Step 3: Cross multiply
    6,120x = 11,556 × 11,556
  4. Step 4: Simplify right side
    6,120x = 133,541,136
  5. Step 5: Solve for x
    x = 133,541,136/6,120
  6. Step 6: Final answer
    x = 21,820.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.89) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.