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Finding the Third Proportional to 8,762 and 19,470

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Solution

The third proportional to 8,762 and 19,470 is: 43,264.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,762 : 19,470 = 19,470 : x
  2. Step 2: Convert to fraction form
    8,762/19,470 = 19,470/x
  3. Step 3: Cross multiply
    8,762x = 19,470 × 19,470
  4. Step 4: Simplify right side
    8,762x = 379,080,900
  5. Step 5: Solve for x
    x = 379,080,900/8,762
  6. Step 6: Final answer
    x = 43,264.20

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.