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Finding the Fourth Proportional to 9,104.85, 13,636.08 and 8,855.64

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Solution

The fourth proportional to 9,104.85, 13,636.08 and 8,855.64 is: 13,262.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,104.85 : 13,636.08 = 8,855.64 : x
  2. Step 2: Convert to fraction form
    9,104.85/13,636.08 = 8,855.64/x
  3. Step 3: Cross multiply
    9,104.85x = 13,636.08 × 8,855.64
  4. Step 4: Simplify right side
    9,104.85x = 120,756,215.49
  5. Step 5: Solve for x
    x = 120,756,215.49/9,104.85
  6. Step 6: Final answer
    x = 13,262.85

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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.