Home / 8,745.68-13,112.04-5,282.12

Finding the Fourth Proportional to 8,745.68, 13,112.04 and 5,282.12

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Solution

The fourth proportional to 8,745.68, 13,112.04 and 5,282.12 is: 7,919.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,745.68 : 13,112.04 = 5,282.12 : x
  2. Step 2: Convert to fraction form
    8,745.68/13,112.04 = 5,282.12/x
  3. Step 3: Cross multiply
    8,745.68x = 13,112.04 × 5,282.12
  4. Step 4: Simplify right side
    8,745.68x = 69,259,368.72
  5. Step 5: Solve for x
    x = 69,259,368.72/8,745.68
  6. Step 6: Final answer
    x = 7,919.27

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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.