Home / 13,270.41-19,905.62-3,409.70

Finding the Fourth Proportional to 13,270.41, 19,905.62 and 3,409.70

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Solution

The fourth proportional to 13,270.41, 19,905.62 and 3,409.70 is: 5,114.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,270.41 : 19,905.62 = 3,409.70 : x
  2. Step 2: Convert to fraction form
    13,270.41/19,905.62 = 3,409.70/x
  3. Step 3: Cross multiply
    13,270.41x = 19,905.62 × 3,409.70
  4. Step 4: Simplify right side
    13,270.41x = 67,872,075.94
  5. Step 5: Solve for x
    x = 67,872,075.94/13,270.41
  6. Step 6: Final answer
    x = 5,114.54

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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.