Home / 9,998.21-13,797.26-5,521.64

Finding the Fourth Proportional to 9,998.21, 13,797.26 and 5,521.64

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Solution

The fourth proportional to 9,998.21, 13,797.26 and 5,521.64 is: 7,619.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,998.21 : 13,797.26 = 5,521.64 : x
  2. Step 2: Convert to fraction form
    9,998.21/13,797.26 = 5,521.64/x
  3. Step 3: Cross multiply
    9,998.21x = 13,797.26 × 5,521.64
  4. Step 4: Simplify right side
    9,998.21x = 76,183,558.76
  5. Step 5: Solve for x
    x = 76,183,558.76/9,998.21
  6. Step 6: Final answer
    x = 7,619.72

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Half scale
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Double scale
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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.