Home / 12,163.58-16,785.36-6,858.32

Finding the Fourth Proportional to 12,163.58, 16,785.36 and 6,858.32

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Solution

The fourth proportional to 12,163.58, 16,785.36 and 6,858.32 is: 9,464.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,163.58 : 16,785.36 = 6,858.32 : x
  2. Step 2: Convert to fraction form
    12,163.58/16,785.36 = 6,858.32/x
  3. Step 3: Cross multiply
    12,163.58x = 16,785.36 × 6,858.32
  4. Step 4: Simplify right side
    12,163.58x = 115,119,370.20
  5. Step 5: Solve for x
    x = 115,119,370.20/12,163.58
  6. Step 6: Final answer
    x = 9,464.27

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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.