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Finding the Third Proportional to 5,382.25 and 8,392.25

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Solution

The third proportional to 5,382.25 and 8,392.25 is: 13,085.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,382.25 : 8,392.25 = 8,392.25 : x
  2. Step 2: Convert to fraction form
    5,382.25/8,392.25 = 8,392.25/x
  3. Step 3: Cross multiply
    5,382.25x = 8,392.25 × 8,392.25
  4. Step 4: Simplify right side
    5,382.25x = 70,429,860.06
  5. Step 5: Solve for x
    x = 70,429,860.06/5,382.25
  6. Step 6: Final answer
    x = 13,085.58

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.