Home / 9,997.85-13,797.13-5,521.71

Finding the Fourth Proportional to 9,997.85, 13,797.13 and 5,521.71

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Solution

The fourth proportional to 9,997.85, 13,797.13 and 5,521.71 is: 7,620.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,997.85 : 13,797.13 = 5,521.71 : x
  2. Step 2: Convert to fraction form
    9,997.85/13,797.13 = 5,521.71/x
  3. Step 3: Cross multiply
    9,997.85x = 13,797.13 × 5,521.71
  4. Step 4: Simplify right side
    9,997.85x = 76,183,750.69
  5. Step 5: Solve for x
    x = 76,183,750.69/9,997.85
  6. Step 6: Final answer
    x = 7,620.02

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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.