Home / 18,866.34-28,288.26-6,382.80

Finding the Fourth Proportional to 18,866.34, 28,288.26 and 6,382.80

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Solution

The fourth proportional to 18,866.34, 28,288.26 and 6,382.80 is: 9,570.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,866.34 : 28,288.26 = 6,382.80 : x
  2. Step 2: Convert to fraction form
    18,866.34/28,288.26 = 6,382.80/x
  3. Step 3: Cross multiply
    18,866.34x = 28,288.26 × 6,382.80
  4. Step 4: Simplify right side
    18,866.34x = 180,558,305.93
  5. Step 5: Solve for x
    x = 180,558,305.93/18,866.34
  6. Step 6: Final answer
    x = 9,570.39

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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.