Home / 18,884.15-28,326.22-6,405.43

Finding the Fourth Proportional to 18,884.15, 28,326.22 and 6,405.43

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Solution

The fourth proportional to 18,884.15, 28,326.22 and 6,405.43 is: 9,608.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,884.15 : 28,326.22 = 6,405.43 : x
  2. Step 2: Convert to fraction form
    18,884.15/28,326.22 = 6,405.43/x
  3. Step 3: Cross multiply
    18,884.15x = 28,326.22 × 6,405.43
  4. Step 4: Simplify right side
    18,884.15x = 181,441,694.42
  5. Step 5: Solve for x
    x = 181,441,694.42/18,884.15
  6. Step 6: Final answer
    x = 9,608.15

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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.