Home / 19,786.23-29,694.39-7,318.05

Finding the Fourth Proportional to 19,786.23, 29,694.39 and 7,318.05

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Solution

The fourth proportional to 19,786.23, 29,694.39 and 7,318.05 is: 10,982.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,786.23 : 29,694.39 = 7,318.05 : x
  2. Step 2: Convert to fraction form
    19,786.23/29,694.39 = 7,318.05/x
  3. Step 3: Cross multiply
    19,786.23x = 29,694.39 × 7,318.05
  4. Step 4: Simplify right side
    19,786.23x = 217,305,030.74
  5. Step 5: Solve for x
    x = 217,305,030.74/19,786.23
  6. Step 6: Final answer
    x = 10,982.64

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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.