Home / 12,647.04-18,968.32-3,413.76

Finding the Fourth Proportional to 12,647.04, 18,968.32 and 3,413.76

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Solution

The fourth proportional to 12,647.04, 18,968.32 and 3,413.76 is: 5,120.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,647.04 : 18,968.32 = 3,413.76 : x
  2. Step 2: Convert to fraction form
    12,647.04/18,968.32 = 3,413.76/x
  3. Step 3: Cross multiply
    12,647.04x = 18,968.32 × 3,413.76
  4. Step 4: Simplify right side
    12,647.04x = 64,753,292.08
  5. Step 5: Solve for x
    x = 64,753,292.08/12,647.04
  6. Step 6: Final answer
    x = 5,120.04

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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.