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Finding the Fourth Proportional to 10,998.99, 16,496.64 and 3,977.67

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Solution

The fourth proportional to 10,998.99, 16,496.64 and 3,977.67 is: 5,965.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,998.99 : 16,496.64 = 3,977.67 : x
  2. Step 2: Convert to fraction form
    10,998.99/16,496.64 = 3,977.67/x
  3. Step 3: Cross multiply
    10,998.99x = 16,496.64 × 3,977.67
  4. Step 4: Simplify right side
    10,998.99x = 65,618,190.03
  5. Step 5: Solve for x
    x = 65,618,190.03/10,998.99
  6. Step 6: Final answer
    x = 5,965.84

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