Home / 8,680.14-11,970.72-5,694.84

Finding the Fourth Proportional to 8,680.14, 11,970.72 and 5,694.84

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Solution

The fourth proportional to 8,680.14, 11,970.72 and 5,694.84 is: 7,853.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,680.14 : 11,970.72 = 5,694.84 : x
  2. Step 2: Convert to fraction form
    8,680.14/11,970.72 = 5,694.84/x
  3. Step 3: Cross multiply
    8,680.14x = 11,970.72 × 5,694.84
  4. Step 4: Simplify right side
    8,680.14x = 68,171,335.08
  5. Step 5: Solve for x
    x = 68,171,335.08/8,680.14
  6. Step 6: Final answer
    x = 7,853.71

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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.