Home / 12,940.20-19,413.73-4,175.35

Finding the Fourth Proportional to 12,940.20, 19,413.73 and 4,175.35

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Solution

The fourth proportional to 12,940.20, 19,413.73 and 4,175.35 is: 6,264.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,940.20 : 19,413.73 = 4,175.35 : x
  2. Step 2: Convert to fraction form
    12,940.20/19,413.73 = 4,175.35/x
  3. Step 3: Cross multiply
    12,940.20x = 19,413.73 × 4,175.35
  4. Step 4: Simplify right side
    12,940.20x = 81,059,117.56
  5. Step 5: Solve for x
    x = 81,059,117.56/12,940.20
  6. Step 6: Final answer
    x = 6,264.13

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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.