Home / 18,189.19-27,290.45-7,661.85

Finding the Fourth Proportional to 18,189.19, 27,290.45 and 7,661.85

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Solution

The fourth proportional to 18,189.19, 27,290.45 and 7,661.85 is: 11,495.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,189.19 : 27,290.45 = 7,661.85 : x
  2. Step 2: Convert to fraction form
    18,189.19/27,290.45 = 7,661.85/x
  3. Step 3: Cross multiply
    18,189.19x = 27,290.45 × 7,661.85
  4. Step 4: Simplify right side
    18,189.19x = 209,095,334.33
  5. Step 5: Solve for x
    x = 209,095,334.33/18,189.19
  6. Step 6: Final answer
    x = 11,495.58

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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.