Home / 12,942.32-19,413.80-3,708.40

Finding the Fourth Proportional to 12,942.32, 19,413.80 and 3,708.40

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Solution

The fourth proportional to 12,942.32, 19,413.80 and 3,708.40 is: 5,562.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,942.32 : 19,413.80 = 3,708.40 : x
  2. Step 2: Convert to fraction form
    12,942.32/19,413.80 = 3,708.40/x
  3. Step 3: Cross multiply
    12,942.32x = 19,413.80 × 3,708.40
  4. Step 4: Simplify right side
    12,942.32x = 71,994,135.92
  5. Step 5: Solve for x
    x = 71,994,135.92/12,942.32
  6. Step 6: Final answer
    x = 5,562.69

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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.