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Finding the Fourth Proportional to 8,081.80, 11,153.10 and 4,544.80

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Solution

The fourth proportional to 8,081.80, 11,153.10 and 4,544.80 is: 6,271.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,081.80 : 11,153.10 = 4,544.80 : x
  2. Step 2: Convert to fraction form
    8,081.80/11,153.10 = 4,544.80/x
  3. Step 3: Cross multiply
    8,081.80x = 11,153.10 × 4,544.80
  4. Step 4: Simplify right side
    8,081.80x = 50,688,608.88
  5. Step 5: Solve for x
    x = 50,688,608.88/8,081.80
  6. Step 6: Final answer
    x = 6,271.95

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Half scale
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Double scale
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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.