Home / 18,922.08-28,382.96-6,443.38

Finding the Fourth Proportional to 18,922.08, 28,382.96 and 6,443.38

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Solution

The fourth proportional to 18,922.08, 28,382.96 and 6,443.38 is: 9,665.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,922.08 : 28,382.96 = 6,443.38 : x
  2. Step 2: Convert to fraction form
    18,922.08/28,382.96 = 6,443.38/x
  3. Step 3: Cross multiply
    18,922.08x = 28,382.96 × 6,443.38
  4. Step 4: Simplify right side
    18,922.08x = 182,882,196.80
  5. Step 5: Solve for x
    x = 182,882,196.80/18,922.08
  6. Step 6: Final answer
    x = 9,665.02

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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.