Home / 13,083.80-19,623.78-4,318.79

Finding the Fourth Proportional to 13,083.80, 19,623.78 and 4,318.79

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Solution

The fourth proportional to 13,083.80, 19,623.78 and 4,318.79 is: 6,477.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,083.80 : 19,623.78 = 4,318.79 : x
  2. Step 2: Convert to fraction form
    13,083.80/19,623.78 = 4,318.79/x
  3. Step 3: Cross multiply
    13,083.80x = 19,623.78 × 4,318.79
  4. Step 4: Simplify right side
    13,083.80x = 84,751,033.89
  5. Step 5: Solve for x
    x = 84,751,033.89/13,083.80
  6. Step 6: Final answer
    x = 6,477.55

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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.