Home / 18,012.18-27,022.26-6,918.87

Finding the Fourth Proportional to 18,012.18, 27,022.26 and 6,918.87

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Solution

The fourth proportional to 18,012.18, 27,022.26 and 6,918.87 is: 10,379.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,012.18 : 27,022.26 = 6,918.87 : x
  2. Step 2: Convert to fraction form
    18,012.18/27,022.26 = 6,918.87/x
  3. Step 3: Cross multiply
    18,012.18x = 27,022.26 × 6,918.87
  4. Step 4: Simplify right side
    18,012.18x = 186,963,504.05
  5. Step 5: Solve for x
    x = 186,963,504.05/18,012.18
  6. Step 6: Final answer
    x = 10,379.84

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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.