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Finding the Third Proportional to 8,520 and 15,648

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Solution

The third proportional to 8,520 and 15,648 is: 28,739.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,520 : 15,648 = 15,648 : x
  2. Step 2: Convert to fraction form
    8,520/15,648 = 15,648/x
  3. Step 3: Cross multiply
    8,520x = 15,648 × 15,648
  4. Step 4: Simplify right side
    8,520x = 244,859,904
  5. Step 5: Solve for x
    x = 244,859,904/8,520
  6. Step 6: Final answer
    x = 28,739.43

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Why These Related Problems?

These problems maintain the same ratio (1.84) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.