Home / 9,997.30-13,796.38-5,520.97

Finding the Fourth Proportional to 9,997.30, 13,796.38 and 5,520.97

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Solution

The fourth proportional to 9,997.30, 13,796.38 and 5,520.97 is: 7,619.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,997.30 : 13,796.38 = 5,520.97 : x
  2. Step 2: Convert to fraction form
    9,997.30/13,796.38 = 5,520.97/x
  3. Step 3: Cross multiply
    9,997.30x = 13,796.38 × 5,520.97
  4. Step 4: Simplify right side
    9,997.30x = 76,169,400.09
  5. Step 5: Solve for x
    x = 76,169,400.09/9,997.30
  6. Step 6: Final answer
    x = 7,619.00

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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.