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Finding the Third Proportional to 11,445 and 17,712

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Solution

The third proportional to 11,445 and 17,712 is: 27,410.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,445 : 17,712 = 17,712 : x
  2. Step 2: Convert to fraction form
    11,445/17,712 = 17,712/x
  3. Step 3: Cross multiply
    11,445x = 17,712 × 17,712
  4. Step 4: Simplify right side
    11,445x = 313,714,944
  5. Step 5: Solve for x
    x = 313,714,944/11,445
  6. Step 6: Final answer
    x = 27,410.65

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.