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Finding the Fourth Proportional to 8,003.54, 12,005.15 and 3,617.86

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Solution

The fourth proportional to 8,003.54, 12,005.15 and 3,617.86 is: 5,426.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,003.54 : 12,005.15 = 3,617.86 : x
  2. Step 2: Convert to fraction form
    8,003.54/12,005.15 = 3,617.86/x
  3. Step 3: Cross multiply
    8,003.54x = 12,005.15 × 3,617.86
  4. Step 4: Simplify right side
    8,003.54x = 43,432,951.98
  5. Step 5: Solve for x
    x = 43,432,951.98/8,003.54
  6. Step 6: Final answer
    x = 5,426.72

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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.