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Finding the Third Proportional to 6,420 and 9,752

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Solution

The third proportional to 6,420 and 9,752 is: 14,813.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,420 : 9,752 = 9,752 : x
  2. Step 2: Convert to fraction form
    6,420/9,752 = 9,752/x
  3. Step 3: Cross multiply
    6,420x = 9,752 × 9,752
  4. Step 4: Simplify right side
    6,420x = 95,101,504
  5. Step 5: Solve for x
    x = 95,101,504/6,420
  6. Step 6: Final answer
    x = 14,813.32

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.