Home / 8,219.25-12,328.88-2,747.25

Finding the Fourth Proportional to 8,219.25, 12,328.88 and 2,747.25

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Solution

The fourth proportional to 8,219.25, 12,328.88 and 2,747.25 is: 4,120.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,219.25 : 12,328.88 = 2,747.25 : x
  2. Step 2: Convert to fraction form
    8,219.25/12,328.88 = 2,747.25/x
  3. Step 3: Cross multiply
    8,219.25x = 12,328.88 × 2,747.25
  4. Step 4: Simplify right side
    8,219.25x = 33,870,501.84
  5. Step 5: Solve for x
    x = 33,870,501.84/8,219.25
  6. Step 6: Final answer
    x = 4,120.88

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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.