Home / 11,458.26-17,133.66-8,161.29

Finding the Fourth Proportional to 11,458.26, 17,133.66 and 8,161.29

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Solution

The fourth proportional to 11,458.26, 17,133.66 and 8,161.29 is: 12,203.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,458.26 : 17,133.66 = 8,161.29 : x
  2. Step 2: Convert to fraction form
    11,458.26/17,133.66 = 8,161.29/x
  3. Step 3: Cross multiply
    11,458.26x = 17,133.66 × 8,161.29
  4. Step 4: Simplify right side
    11,458.26x = 139,832,768.02
  5. Step 5: Solve for x
    x = 139,832,768.02/11,458.26
  6. Step 6: Final answer
    x = 12,203.67

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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.