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Finding the Fourth Proportional to 8,000.28, 11,998.49 and 3,555.50

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Solution

The fourth proportional to 8,000.28, 11,998.49 and 3,555.50 is: 5,332.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,000.28 : 11,998.49 = 3,555.50 : x
  2. Step 2: Convert to fraction form
    8,000.28/11,998.49 = 3,555.50/x
  3. Step 3: Cross multiply
    8,000.28x = 11,998.49 × 3,555.50
  4. Step 4: Simplify right side
    8,000.28x = 42,660,553.43
  5. Step 5: Solve for x
    x = 42,660,553.43/8,000.28
  6. Step 6: Final answer
    x = 5,332.38

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Half scale
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Double scale
Find fourth proportional to 8,001.28, 11,999.98 and 3,556.50
Similar ratio
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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.