Home / 18,882.09-28,284.23-11,072.07

Finding the Fourth Proportional to 18,882.09, 28,284.23 and 11,072.07

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Solution

The fourth proportional to 18,882.09, 28,284.23 and 11,072.07 is: 16,585.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,882.09 : 28,284.23 = 11,072.07 : x
  2. Step 2: Convert to fraction form
    18,882.09/28,284.23 = 11,072.07/x
  3. Step 3: Cross multiply
    18,882.09x = 28,284.23 × 11,072.07
  4. Step 4: Simplify right side
    18,882.09x = 313,164,919.10
  5. Step 5: Solve for x
    x = 313,164,919.10/18,882.09
  6. Step 6: Final answer
    x = 16,585.29

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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.