Home / 18,866.26-28,305.42-5,718.70

Finding the Fourth Proportional to 18,866.26, 28,305.42 and 5,718.70

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Solution

The fourth proportional to 18,866.26, 28,305.42 and 5,718.70 is: 8,579.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,866.26 : 28,305.42 = 5,718.70 : x
  2. Step 2: Convert to fraction form
    18,866.26/28,305.42 = 5,718.70/x
  3. Step 3: Cross multiply
    18,866.26x = 28,305.42 × 5,718.70
  4. Step 4: Simplify right side
    18,866.26x = 161,870,205.35
  5. Step 5: Solve for x
    x = 161,870,205.35/18,866.26
  6. Step 6: Final answer
    x = 8,579.88

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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.