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Finding the Fourth Proportional to 8,771.87, 12,101.73 and 5,584.34

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Solution

The fourth proportional to 8,771.87, 12,101.73 and 5,584.34 is: 7,704.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,771.87 : 12,101.73 = 5,584.34 : x
  2. Step 2: Convert to fraction form
    8,771.87/12,101.73 = 5,584.34/x
  3. Step 3: Cross multiply
    8,771.87x = 12,101.73 × 5,584.34
  4. Step 4: Simplify right side
    8,771.87x = 67,580,184.22
  5. Step 5: Solve for x
    x = 67,580,184.22/8,771.87
  6. Step 6: Final answer
    x = 7,704.19

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1.5x scale

Why These Related Problems?

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