Home / 12,731.50-19,102.11-4,940.92

Finding the Fourth Proportional to 12,731.50, 19,102.11 and 4,940.92

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Solution

The fourth proportional to 12,731.50, 19,102.11 and 4,940.92 is: 7,413.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,731.50 : 19,102.11 = 4,940.92 : x
  2. Step 2: Convert to fraction form
    12,731.50/19,102.11 = 4,940.92/x
  3. Step 3: Cross multiply
    12,731.50x = 19,102.11 × 4,940.92
  4. Step 4: Simplify right side
    12,731.50x = 94,381,997.34
  5. Step 5: Solve for x
    x = 94,381,997.34/12,731.50
  6. Step 6: Final answer
    x = 7,413.27

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1.5x scale

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.