Home / 11,236.25-16,768.90-9,990.67

Finding the Fourth Proportional to 11,236.25, 16,768.90 and 9,990.67

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Solution

The fourth proportional to 11,236.25, 16,768.90 and 9,990.67 is: 14,910.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,236.25 : 16,768.90 = 9,990.67 : x
  2. Step 2: Convert to fraction form
    11,236.25/16,768.90 = 9,990.67/x
  3. Step 3: Cross multiply
    11,236.25x = 16,768.90 × 9,990.67
  4. Step 4: Simplify right side
    11,236.25x = 167,532,496.21
  5. Step 5: Solve for x
    x = 167,532,496.21/11,236.25
  6. Step 6: Final answer
    x = 14,910.01

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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 (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.