Home / 7,413.36-10,229.61-4,428.78

Finding the Fourth Proportional to 7,413.36, 10,229.61 and 4,428.78

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Solution

The fourth proportional to 7,413.36, 10,229.61 and 4,428.78 is: 6,111.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,413.36 : 10,229.61 = 4,428.78 : x
  2. Step 2: Convert to fraction form
    7,413.36/10,229.61 = 4,428.78/x
  3. Step 3: Cross multiply
    7,413.36x = 10,229.61 × 4,428.78
  4. Step 4: Simplify right side
    7,413.36x = 45,304,692.18
  5. Step 5: Solve for x
    x = 45,304,692.18/7,413.36
  6. Step 6: Final answer
    x = 6,111.22

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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.