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Finding the Third Proportional to 4,074 and 7,824

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Solution

The third proportional to 4,074 and 7,824 is: 15,025.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,074 : 7,824 = 7,824 : x
  2. Step 2: Convert to fraction form
    4,074/7,824 = 7,824/x
  3. Step 3: Cross multiply
    4,074x = 7,824 × 7,824
  4. Step 4: Simplify right side
    4,074x = 61,214,976
  5. Step 5: Solve for x
    x = 61,214,976/4,074
  6. Step 6: Final answer
    x = 15,025.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.92) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.