Home / 8,278.56-12,413.58-3,080.76

Finding the Fourth Proportional to 8,278.56, 12,413.58 and 3,080.76

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Solution

The fourth proportional to 8,278.56, 12,413.58 and 3,080.76 is: 4,619.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,278.56 : 12,413.58 = 3,080.76 : x
  2. Step 2: Convert to fraction form
    8,278.56/12,413.58 = 3,080.76/x
  3. Step 3: Cross multiply
    8,278.56x = 12,413.58 × 3,080.76
  4. Step 4: Simplify right side
    8,278.56x = 38,243,260.72
  5. Step 5: Solve for x
    x = 38,243,260.72/8,278.56
  6. Step 6: Final answer
    x = 4,619.55

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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.