Home / 13,292.90-19,942.55-3,805.36

Finding the Fourth Proportional to 13,292.90, 19,942.55 and 3,805.36

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Solution

The fourth proportional to 13,292.90, 19,942.55 and 3,805.36 is: 5,708.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,292.90 : 19,942.55 = 3,805.36 : x
  2. Step 2: Convert to fraction form
    13,292.90/19,942.55 = 3,805.36/x
  3. Step 3: Cross multiply
    13,292.90x = 19,942.55 × 3,805.36
  4. Step 4: Simplify right side
    13,292.90x = 75,888,541.73
  5. Step 5: Solve for x
    x = 75,888,541.73/13,292.90
  6. Step 6: Final answer
    x = 5,708.95

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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.