Home / 8,021.36-12,031.82-2,177.82

Finding the Fourth Proportional to 8,021.36, 12,031.82 and 2,177.82

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Solution

The fourth proportional to 8,021.36, 12,031.82 and 2,177.82 is: 3,266.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,021.36 : 12,031.82 = 2,177.82 : x
  2. Step 2: Convert to fraction form
    8,021.36/12,031.82 = 2,177.82/x
  3. Step 3: Cross multiply
    8,021.36x = 12,031.82 × 2,177.82
  4. Step 4: Simplify right side
    8,021.36x = 26,203,127.34
  5. Step 5: Solve for x
    x = 26,203,127.34/8,021.36
  6. Step 6: Final answer
    x = 3,266.67

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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.