Home / 11,899.41-16,383.81-10,103.19

Finding the Fourth Proportional to 11,899.41, 16,383.81 and 10,103.19

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Solution

The fourth proportional to 11,899.41, 16,383.81 and 10,103.19 is: 13,910.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,899.41 : 16,383.81 = 10,103.19 : x
  2. Step 2: Convert to fraction form
    11,899.41/16,383.81 = 10,103.19/x
  3. Step 3: Cross multiply
    11,899.41x = 16,383.81 × 10,103.19
  4. Step 4: Simplify right side
    11,899.41x = 165,528,745.35
  5. Step 5: Solve for x
    x = 165,528,745.35/11,899.41
  6. Step 6: Final answer
    x = 13,910.67

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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.