Home / 18,664.56-27,979.56-6,968.88

Finding the Fourth Proportional to 18,664.56, 27,979.56 and 6,968.88

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Solution

The fourth proportional to 18,664.56, 27,979.56 and 6,968.88 is: 10,446.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,664.56 : 27,979.56 = 6,968.88 : x
  2. Step 2: Convert to fraction form
    18,664.56/27,979.56 = 6,968.88/x
  3. Step 3: Cross multiply
    18,664.56x = 27,979.56 × 6,968.88
  4. Step 4: Simplify right side
    18,664.56x = 194,986,196.09
  5. Step 5: Solve for x
    x = 194,986,196.09/18,664.56
  6. Step 6: Final answer
    x = 10,446.87

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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.