Home / 13,297.20-19,948.73-3,937.95

Finding the Fourth Proportional to 13,297.20, 19,948.73 and 3,937.95

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Solution

The fourth proportional to 13,297.20, 19,948.73 and 3,937.95 is: 5,907.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,297.20 : 19,948.73 = 3,937.95 : x
  2. Step 2: Convert to fraction form
    13,297.20/19,948.73 = 3,937.95/x
  3. Step 3: Cross multiply
    13,297.20x = 19,948.73 × 3,937.95
  4. Step 4: Simplify right side
    13,297.20x = 78,557,081.61
  5. Step 5: Solve for x
    x = 78,557,081.61/13,297.20
  6. Step 6: Final answer
    x = 5,907.79

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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.