Home / 11,413.70-15,740.79-8,436.95

Finding the Fourth Proportional to 11,413.70, 15,740.79 and 8,436.95

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Solution

The fourth proportional to 11,413.70, 15,740.79 and 8,436.95 is: 11,635.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,413.70 : 15,740.79 = 8,436.95 : x
  2. Step 2: Convert to fraction form
    11,413.70/15,740.79 = 8,436.95/x
  3. Step 3: Cross multiply
    11,413.70x = 15,740.79 × 8,436.95
  4. Step 4: Simplify right side
    11,413.70x = 132,804,258.19
  5. Step 5: Solve for x
    x = 132,804,258.19/11,413.70
  6. Step 6: Final answer
    x = 11,635.51

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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.