Home / 9,221.96-12,694.31-6,979.88

Finding the Fourth Proportional to 9,221.96, 12,694.31 and 6,979.88

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Solution

The fourth proportional to 9,221.96, 12,694.31 and 6,979.88 is: 9,608.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,221.96 : 12,694.31 = 6,979.88 : x
  2. Step 2: Convert to fraction form
    9,221.96/12,694.31 = 6,979.88/x
  3. Step 3: Cross multiply
    9,221.96x = 12,694.31 × 6,979.88
  4. Step 4: Simplify right side
    9,221.96x = 88,604,662.11
  5. Step 5: Solve for x
    x = 88,604,662.11/9,221.96
  6. Step 6: Final answer
    x = 9,608.01

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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.