Home / 12,731.16-19,102.38-4,940.56

Finding the Fourth Proportional to 12,731.16, 19,102.38 and 4,940.56

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Solution

The fourth proportional to 12,731.16, 19,102.38 and 4,940.56 is: 7,413.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,731.16 : 19,102.38 = 4,940.56 : x
  2. Step 2: Convert to fraction form
    12,731.16/19,102.38 = 4,940.56/x
  3. Step 3: Cross multiply
    12,731.16x = 19,102.38 × 4,940.56
  4. Step 4: Simplify right side
    12,731.16x = 94,376,454.53
  5. Step 5: Solve for x
    x = 94,376,454.53/12,731.16
  6. Step 6: Final answer
    x = 7,413.03

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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.