Home / 8,271.76-11,413.44-5,285.28

Finding the Fourth Proportional to 8,271.76, 11,413.44 and 5,285.28

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Solution

The fourth proportional to 8,271.76, 11,413.44 and 5,285.28 is: 7,292.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,271.76 : 11,413.44 = 5,285.28 : x
  2. Step 2: Convert to fraction form
    8,271.76/11,413.44 = 5,285.28/x
  3. Step 3: Cross multiply
    8,271.76x = 11,413.44 × 5,285.28
  4. Step 4: Simplify right side
    8,271.76x = 60,323,226.16
  5. Step 5: Solve for x
    x = 60,323,226.16/8,271.76
  6. Step 6: Final answer
    x = 7,292.67

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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.