Home / 13,072.88-19,608.80-3,211.68

Finding the Fourth Proportional to 13,072.88, 19,608.80 and 3,211.68

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Solution

The fourth proportional to 13,072.88, 19,608.80 and 3,211.68 is: 4,817.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,072.88 : 19,608.80 = 3,211.68 : x
  2. Step 2: Convert to fraction form
    13,072.88/19,608.80 = 3,211.68/x
  3. Step 3: Cross multiply
    13,072.88x = 19,608.80 × 3,211.68
  4. Step 4: Simplify right side
    13,072.88x = 62,977,190.78
  5. Step 5: Solve for x
    x = 62,977,190.78/13,072.88
  6. Step 6: Final answer
    x = 4,817.39

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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.