Home / 11,506.68-15,857.10-8,188.92

Finding the Fourth Proportional to 11,506.68, 15,857.10 and 8,188.92

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Solution

The fourth proportional to 11,506.68, 15,857.10 and 8,188.92 is: 11,284.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,506.68 : 15,857.10 = 8,188.92 : x
  2. Step 2: Convert to fraction form
    11,506.68/15,857.10 = 8,188.92/x
  3. Step 3: Cross multiply
    11,506.68x = 15,857.10 × 8,188.92
  4. Step 4: Simplify right side
    11,506.68x = 129,852,523.33
  5. Step 5: Solve for x
    x = 129,852,523.33/11,506.68
  6. Step 6: Final answer
    x = 11,284.97

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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.