Home / 8,280.77-12,420.83-2,733.95

Finding the Fourth Proportional to 8,280.77, 12,420.83 and 2,733.95

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Solution

The fourth proportional to 8,280.77, 12,420.83 and 2,733.95 is: 4,100.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,280.77 : 12,420.83 = 2,733.95 : x
  2. Step 2: Convert to fraction form
    8,280.77/12,420.83 = 2,733.95/x
  3. Step 3: Cross multiply
    8,280.77x = 12,420.83 × 2,733.95
  4. Step 4: Simplify right side
    8,280.77x = 33,957,914.51
  5. Step 5: Solve for x
    x = 33,957,914.51/8,280.77
  6. Step 6: Final answer
    x = 4,100.82

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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.