Home / 13,397-20,091.63-4,511.36

Finding the Fourth Proportional to 13,397, 20,091.63 and 4,511.36

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Solution

The fourth proportional to 13,397, 20,091.63 and 4,511.36 is: 6,765.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,397 : 20,091.63 = 4,511.36 : x
  2. Step 2: Convert to fraction form
    13,397/20,091.63 = 4,511.36/x
  3. Step 3: Cross multiply
    13,397x = 20,091.63 × 4,511.36
  4. Step 4: Simplify right side
    13,397x = 90,640,575.92
  5. Step 5: Solve for x
    x = 90,640,575.92/13,397
  6. Step 6: Final answer
    x = 6,765.74

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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.