Home / 8,181.24-12,265.36-3,561

Finding the Fourth Proportional to 8,181.24, 12,265.36 and 3,561

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Solution

The fourth proportional to 8,181.24, 12,265.36 and 3,561 is: 5,338.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,181.24 : 12,265.36 = 3,561 : x
  2. Step 2: Convert to fraction form
    8,181.24/12,265.36 = 3,561/x
  3. Step 3: Cross multiply
    8,181.24x = 12,265.36 × 3,561
  4. Step 4: Simplify right side
    8,181.24x = 43,676,946.96
  5. Step 5: Solve for x
    x = 43,676,946.96/8,181.24
  6. Step 6: Final answer
    x = 5,338.67

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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.