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Finding the Fourth Proportional to 8,431.03, 12,648.03 and 2,883.07

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Solution

The fourth proportional to 8,431.03, 12,648.03 and 2,883.07 is: 4,325.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,431.03 : 12,648.03 = 2,883.07 : x
  2. Step 2: Convert to fraction form
    8,431.03/12,648.03 = 2,883.07/x
  3. Step 3: Cross multiply
    8,431.03x = 12,648.03 × 2,883.07
  4. Step 4: Simplify right side
    8,431.03x = 36,465,155.85
  5. Step 5: Solve for x
    x = 36,465,155.85/8,431.03
  6. Step 6: Final answer
    x = 4,325.11

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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.