Home / 13,673.54-20,511.41-3,812.91

Finding the Fourth Proportional to 13,673.54, 20,511.41 and 3,812.91

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Solution

The fourth proportional to 13,673.54, 20,511.41 and 3,812.91 is: 5,719.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,673.54 : 20,511.41 = 3,812.91 : x
  2. Step 2: Convert to fraction form
    13,673.54/20,511.41 = 3,812.91/x
  3. Step 3: Cross multiply
    13,673.54x = 20,511.41 × 3,812.91
  4. Step 4: Simplify right side
    13,673.54x = 78,208,141.24
  5. Step 5: Solve for x
    x = 78,208,141.24/13,673.54
  6. Step 6: Final answer
    x = 5,719.67

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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.