Home / 13,023.75-19,538.87-3,789.75

Finding the Fourth Proportional to 13,023.75, 19,538.87 and 3,789.75

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Solution

The fourth proportional to 13,023.75, 19,538.87 and 3,789.75 is: 5,685.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,023.75 : 19,538.87 = 3,789.75 : x
  2. Step 2: Convert to fraction form
    13,023.75/19,538.87 = 3,789.75/x
  3. Step 3: Cross multiply
    13,023.75x = 19,538.87 × 3,789.75
  4. Step 4: Simplify right side
    13,023.75x = 74,047,413.63
  5. Step 5: Solve for x
    x = 74,047,413.63/13,023.75
  6. Step 6: Final answer
    x = 5,685.57

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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.