Home / 9,997.22-15,004.92-5,321.14

Finding the Fourth Proportional to 9,997.22, 15,004.92 and 5,321.14

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Solution

The fourth proportional to 9,997.22, 15,004.92 and 5,321.14 is: 7,986.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,997.22 : 15,004.92 = 5,321.14 : x
  2. Step 2: Convert to fraction form
    9,997.22/15,004.92 = 5,321.14/x
  3. Step 3: Cross multiply
    9,997.22x = 15,004.92 × 5,321.14
  4. Step 4: Simplify right side
    9,997.22x = 79,843,331.89
  5. Step 5: Solve for x
    x = 79,843,331.89/9,997.22
  6. Step 6: Final answer
    x = 7,986.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.