Home / 11,719.42-16,172.40-6,413.90

Finding the Fourth Proportional to 11,719.42, 16,172.40 and 6,413.90

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Solution

The fourth proportional to 11,719.42, 16,172.40 and 6,413.90 is: 8,850.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,719.42 : 16,172.40 = 6,413.90 : x
  2. Step 2: Convert to fraction form
    11,719.42/16,172.40 = 6,413.90/x
  3. Step 3: Cross multiply
    11,719.42x = 16,172.40 × 6,413.90
  4. Step 4: Simplify right side
    11,719.42x = 103,728,156.36
  5. Step 5: Solve for x
    x = 103,728,156.36/11,719.42
  6. Step 6: Final answer
    x = 8,850.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.