Home / 12,166.12-16,789.20-6,577.12

Finding the Fourth Proportional to 12,166.12, 16,789.20 and 6,577.12

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Solution

The fourth proportional to 12,166.12, 16,789.20 and 6,577.12 is: 9,076.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,166.12 : 16,789.20 = 6,577.12 : x
  2. Step 2: Convert to fraction form
    12,166.12/16,789.20 = 6,577.12/x
  3. Step 3: Cross multiply
    12,166.12x = 16,789.20 × 6,577.12
  4. Step 4: Simplify right side
    12,166.12x = 110,424,583.10
  5. Step 5: Solve for x
    x = 110,424,583.10/12,166.12
  6. Step 6: Final answer
    x = 9,076.40

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Half scale
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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.