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Finding the Fourth Proportional to 8,000.43, 11,040.57 and 4,645.20

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Solution

The fourth proportional to 8,000.43, 11,040.57 and 4,645.20 is: 6,410.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,000.43 : 11,040.57 = 4,645.20 : x
  2. Step 2: Convert to fraction form
    8,000.43/11,040.57 = 4,645.20/x
  3. Step 3: Cross multiply
    8,000.43x = 11,040.57 × 4,645.20
  4. Step 4: Simplify right side
    8,000.43x = 51,285,697.17
  5. Step 5: Solve for x
    x = 51,285,697.17/8,000.43
  6. Step 6: Final answer
    x = 6,410.37

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.