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Finding the Third Proportional to 5,220 and 11,407

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Solution

The third proportional to 5,220 and 11,407 is: 24,927.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220 : 11,407 = 11,407 : x
  2. Step 2: Convert to fraction form
    5,220/11,407 = 11,407/x
  3. Step 3: Cross multiply
    5,220x = 11,407 × 11,407
  4. Step 4: Simplify right side
    5,220x = 130,119,649
  5. Step 5: Solve for x
    x = 130,119,649/5,220
  6. Step 6: Final answer
    x = 24,927.14

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.