Home / 11,853.01-16,357.12-6,818.20

Finding the Fourth Proportional to 11,853.01, 16,357.12 and 6,818.20

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Solution

The fourth proportional to 11,853.01, 16,357.12 and 6,818.20 is: 9,409.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,853.01 : 16,357.12 = 6,818.20 : x
  2. Step 2: Convert to fraction form
    11,853.01/16,357.12 = 6,818.20/x
  3. Step 3: Cross multiply
    11,853.01x = 16,357.12 × 6,818.20
  4. Step 4: Simplify right side
    11,853.01x = 111,526,115.58
  5. Step 5: Solve for x
    x = 111,526,115.58/11,853.01
  6. Step 6: Final answer
    x = 9,409.10

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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.