Home / 18,218.69-27,325.76-5,072.09

Finding the Fourth Proportional to 18,218.69, 27,325.76 and 5,072.09

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Solution

The fourth proportional to 18,218.69, 27,325.76 and 5,072.09 is: 7,607.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,218.69 : 27,325.76 = 5,072.09 : x
  2. Step 2: Convert to fraction form
    18,218.69/27,325.76 = 5,072.09/x
  3. Step 3: Cross multiply
    18,218.69x = 27,325.76 × 5,072.09
  4. Step 4: Simplify right side
    18,218.69x = 138,598,552.05
  5. Step 5: Solve for x
    x = 138,598,552.05/18,218.69
  6. Step 6: Final answer
    x = 7,607.49

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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.