Home / 11,286.92-15,561.24-8,630.12

Finding the Fourth Proportional to 11,286.92, 15,561.24 and 8,630.12

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Solution

The fourth proportional to 11,286.92, 15,561.24 and 8,630.12 is: 11,898.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,286.92 : 15,561.24 = 8,630.12 : x
  2. Step 2: Convert to fraction form
    11,286.92/15,561.24 = 8,630.12/x
  3. Step 3: Cross multiply
    11,286.92x = 15,561.24 × 8,630.12
  4. Step 4: Simplify right side
    11,286.92x = 134,295,368.55
  5. Step 5: Solve for x
    x = 134,295,368.55/11,286.92
  6. Step 6: Final answer
    x = 11,898.32

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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.