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Finding the Fourth Proportional to 8,771.70, 13,153.20 and 3,224.82

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Solution

The fourth proportional to 8,771.70, 13,153.20 and 3,224.82 is: 4,835.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,771.70 : 13,153.20 = 3,224.82 : x
  2. Step 2: Convert to fraction form
    8,771.70/13,153.20 = 3,224.82/x
  3. Step 3: Cross multiply
    8,771.70x = 13,153.20 × 3,224.82
  4. Step 4: Simplify right side
    8,771.70x = 42,416,702.42
  5. Step 5: Solve for x
    x = 42,416,702.42/8,771.70
  6. Step 6: Final answer
    x = 4,835.63

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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.