Home / 18,485.40-27,738.90-6,799.80

Finding the Fourth Proportional to 18,485.40, 27,738.90 and 6,799.80

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Solution

The fourth proportional to 18,485.40, 27,738.90 and 6,799.80 is: 10,203.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,485.40 : 27,738.90 = 6,799.80 : x
  2. Step 2: Convert to fraction form
    18,485.40/27,738.90 = 6,799.80/x
  3. Step 3: Cross multiply
    18,485.40x = 27,738.90 × 6,799.80
  4. Step 4: Simplify right side
    18,485.40x = 188,618,972.22
  5. Step 5: Solve for x
    x = 188,618,972.22/18,485.40
  6. Step 6: Final answer
    x = 10,203.67

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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.