Home / 13,208.12-19,809-3,845.60

Finding the Fourth Proportional to 13,208.12, 19,809 and 3,845.60

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Solution

The fourth proportional to 13,208.12, 19,809 and 3,845.60 is: 5,767.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,208.12 : 19,809 = 3,845.60 : x
  2. Step 2: Convert to fraction form
    13,208.12/19,809 = 3,845.60/x
  3. Step 3: Cross multiply
    13,208.12x = 19,809 × 3,845.60
  4. Step 4: Simplify right side
    13,208.12x = 76,177,490.40
  5. Step 5: Solve for x
    x = 76,177,490.40/13,208.12
  6. Step 6: Final answer
    x = 5,767.47

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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.