Home / 8,413.49-12,622.86-3,485.45

Finding the Fourth Proportional to 8,413.49, 12,622.86 and 3,485.45

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Solution

The fourth proportional to 8,413.49, 12,622.86 and 3,485.45 is: 5,229.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,413.49 : 12,622.86 = 3,485.45 : x
  2. Step 2: Convert to fraction form
    8,413.49/12,622.86 = 3,485.45/x
  3. Step 3: Cross multiply
    8,413.49x = 12,622.86 × 3,485.45
  4. Step 4: Simplify right side
    8,413.49x = 43,996,347.39
  5. Step 5: Solve for x
    x = 43,996,347.39/8,413.49
  6. Step 6: Final answer
    x = 5,229.26

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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.