Home / 12,049.12-16,622.88-8,511.04

Finding the Fourth Proportional to 12,049.12, 16,622.88 and 8,511.04

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Solution

The fourth proportional to 12,049.12, 16,622.88 and 8,511.04 is: 11,741.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,049.12 : 16,622.88 = 8,511.04 : x
  2. Step 2: Convert to fraction form
    12,049.12/16,622.88 = 8,511.04/x
  3. Step 3: Cross multiply
    12,049.12x = 16,622.88 × 8,511.04
  4. Step 4: Simplify right side
    12,049.12x = 141,477,996.60
  5. Step 5: Solve for x
    x = 141,477,996.60/12,049.12
  6. Step 6: Final answer
    x = 11,741.77

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Double scale
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Similar ratio
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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.