Home / 7,413.18-11,119.64-1,866.53

Finding the Fourth Proportional to 7,413.18, 11,119.64 and 1,866.53

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Solution

The fourth proportional to 7,413.18, 11,119.64 and 1,866.53 is: 2,799.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,413.18 : 11,119.64 = 1,866.53 : x
  2. Step 2: Convert to fraction form
    7,413.18/11,119.64 = 1,866.53/x
  3. Step 3: Cross multiply
    7,413.18x = 11,119.64 × 1,866.53
  4. Step 4: Simplify right side
    7,413.18x = 20,755,076.72
  5. Step 5: Solve for x
    x = 20,755,076.72/7,413.18
  6. Step 6: Final answer
    x = 2,799.75

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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.