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Finding the Fourth Proportional to 8,000.99, 12,007.90 and 3,618.82

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Solution

The fourth proportional to 8,000.99, 12,007.90 and 3,618.82 is: 5,431.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,000.99 : 12,007.90 = 3,618.82 : x
  2. Step 2: Convert to fraction form
    8,000.99/12,007.90 = 3,618.82/x
  3. Step 3: Cross multiply
    8,000.99x = 12,007.90 × 3,618.82
  4. Step 4: Simplify right side
    8,000.99x = 43,454,428.68
  5. Step 5: Solve for x
    x = 43,454,428.68/8,000.99
  6. Step 6: Final answer
    x = 5,431.13

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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.