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Finding the Fourth Proportional to 8,855.36, 12,153.04 and 8,148.80

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Solution

The fourth proportional to 8,855.36, 12,153.04 and 8,148.80 is: 11,183.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,855.36 : 12,153.04 = 8,148.80 : x
  2. Step 2: Convert to fraction form
    8,855.36/12,153.04 = 8,148.80/x
  3. Step 3: Cross multiply
    8,855.36x = 12,153.04 × 8,148.80
  4. Step 4: Simplify right side
    8,855.36x = 99,032,692.35
  5. Step 5: Solve for x
    x = 99,032,692.35/8,855.36
  6. Step 6: Final answer
    x = 11,183.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.