Home / 18,618.09-27,910.67-6,928.53

Finding the Fourth Proportional to 18,618.09, 27,910.67 and 6,928.53

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Solution

The fourth proportional to 18,618.09, 27,910.67 and 6,928.53 is: 10,386.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,618.09 : 27,910.67 = 6,928.53 : x
  2. Step 2: Convert to fraction form
    18,618.09/27,910.67 = 6,928.53/x
  3. Step 3: Cross multiply
    18,618.09x = 27,910.67 × 6,928.53
  4. Step 4: Simplify right side
    18,618.09x = 193,379,879.77
  5. Step 5: Solve for x
    x = 193,379,879.77/18,618.09
  6. Step 6: Final answer
    x = 10,386.67

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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.