Home / 18,942.12-28,413.72-5,794.20

Finding the Fourth Proportional to 18,942.12, 28,413.72 and 5,794.20

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Solution

The fourth proportional to 18,942.12, 28,413.72 and 5,794.20 is: 8,691.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,942.12 : 28,413.72 = 5,794.20 : x
  2. Step 2: Convert to fraction form
    18,942.12/28,413.72 = 5,794.20/x
  3. Step 3: Cross multiply
    18,942.12x = 28,413.72 × 5,794.20
  4. Step 4: Simplify right side
    18,942.12x = 164,634,776.42
  5. Step 5: Solve for x
    x = 164,634,776.42/18,942.12
  6. Step 6: Final answer
    x = 8,691.47

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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.