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Finding the Fourth Proportional to 8,913.16, 13,370.09 and 3,069.77

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Solution

The fourth proportional to 8,913.16, 13,370.09 and 3,069.77 is: 4,604.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,913.16 : 13,370.09 = 3,069.77 : x
  2. Step 2: Convert to fraction form
    8,913.16/13,370.09 = 3,069.77/x
  3. Step 3: Cross multiply
    8,913.16x = 13,370.09 × 3,069.77
  4. Step 4: Simplify right side
    8,913.16x = 41,043,140.42
  5. Step 5: Solve for x
    x = 41,043,140.42/8,913.16
  6. Step 6: Final answer
    x = 4,604.78

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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.