Home / 7,413.84-11,118.96-2,147.76

Finding the Fourth Proportional to 7,413.84, 11,118.96 and 2,147.76

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Solution

The fourth proportional to 7,413.84, 11,118.96 and 2,147.76 is: 3,221.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,413.84 : 11,118.96 = 2,147.76 : x
  2. Step 2: Convert to fraction form
    7,413.84/11,118.96 = 2,147.76/x
  3. Step 3: Cross multiply
    7,413.84x = 11,118.96 × 2,147.76
  4. Step 4: Simplify right side
    7,413.84x = 23,880,857.53
  5. Step 5: Solve for x
    x = 23,880,857.53/7,413.84
  6. Step 6: Final answer
    x = 3,221.12

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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.