Home / 13,091.41-18,066-7,786.32

Finding the Fourth Proportional to 13,091.41, 18,066 and 7,786.32

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Solution

The fourth proportional to 13,091.41, 18,066 and 7,786.32 is: 10,745.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,091.41 : 18,066 = 7,786.32 : x
  2. Step 2: Convert to fraction form
    13,091.41/18,066 = 7,786.32/x
  3. Step 3: Cross multiply
    13,091.41x = 18,066 × 7,786.32
  4. Step 4: Simplify right side
    13,091.41x = 140,667,657.12
  5. Step 5: Solve for x
    x = 140,667,657.12/13,091.41
  6. Step 6: Final answer
    x = 10,745.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.