Home / 18,729.54-28,091.07-7,040.70

Finding the Fourth Proportional to 18,729.54, 28,091.07 and 7,040.70

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Solution

The fourth proportional to 18,729.54, 28,091.07 and 7,040.70 is: 10,559.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,729.54 : 28,091.07 = 7,040.70 : x
  2. Step 2: Convert to fraction form
    18,729.54/28,091.07 = 7,040.70/x
  3. Step 3: Cross multiply
    18,729.54x = 28,091.07 × 7,040.70
  4. Step 4: Simplify right side
    18,729.54x = 197,780,796.55
  5. Step 5: Solve for x
    x = 197,780,796.55/18,729.54
  6. Step 6: Final answer
    x = 10,559.83

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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.