Home / 8,000.13-11,998.38-2,157.21

Finding the Fourth Proportional to 8,000.13, 11,998.38 and 2,157.21

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Solution

The fourth proportional to 8,000.13, 11,998.38 and 2,157.21 is: 3,235.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,000.13 : 11,998.38 = 2,157.21 : x
  2. Step 2: Convert to fraction form
    8,000.13/11,998.38 = 2,157.21/x
  3. Step 3: Cross multiply
    8,000.13x = 11,998.38 × 2,157.21
  4. Step 4: Simplify right side
    8,000.13x = 25,883,025.32
  5. Step 5: Solve for x
    x = 25,883,025.32/8,000.13
  6. Step 6: Final answer
    x = 3,235.33

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.