Home / 13,342.53-20,013.81-3,481.80

Finding the Fourth Proportional to 13,342.53, 20,013.81 and 3,481.80

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Solution

The fourth proportional to 13,342.53, 20,013.81 and 3,481.80 is: 5,222.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,342.53 : 20,013.81 = 3,481.80 : x
  2. Step 2: Convert to fraction form
    13,342.53/20,013.81 = 3,481.80/x
  3. Step 3: Cross multiply
    13,342.53x = 20,013.81 × 3,481.80
  4. Step 4: Simplify right side
    13,342.53x = 69,684,083.66
  5. Step 5: Solve for x
    x = 69,684,083.66/13,342.53
  6. Step 6: Final answer
    x = 5,222.70

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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.