Home / 9,997.44-13,796.32-5,521.64

Finding the Fourth Proportional to 9,997.44, 13,796.32 and 5,521.64

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Solution

The fourth proportional to 9,997.44, 13,796.32 and 5,521.64 is: 7,619.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,997.44 : 13,796.32 = 5,521.64 : x
  2. Step 2: Convert to fraction form
    9,997.44/13,796.32 = 5,521.64/x
  3. Step 3: Cross multiply
    9,997.44x = 13,796.32 × 5,521.64
  4. Step 4: Simplify right side
    9,997.44x = 76,178,312.36
  5. Step 5: Solve for x
    x = 76,178,312.36/9,997.44
  6. Step 6: Final answer
    x = 7,619.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.