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Finding the Fourth Proportional to 8,480.53, 12,702.30 and 5,183.63

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Solution

The fourth proportional to 8,480.53, 12,702.30 and 5,183.63 is: 7,764.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,480.53 : 12,702.30 = 5,183.63 : x
  2. Step 2: Convert to fraction form
    8,480.53/12,702.30 = 5,183.63/x
  3. Step 3: Cross multiply
    8,480.53x = 12,702.30 × 5,183.63
  4. Step 4: Simplify right side
    8,480.53x = 65,844,023.35
  5. Step 5: Solve for x
    x = 65,844,023.35/8,480.53
  6. Step 6: Final answer
    x = 7,764.14

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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.