Home / 12,163.20-16,786.08-6,858.51

Finding the Fourth Proportional to 12,163.20, 16,786.08 and 6,858.51

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Solution

The fourth proportional to 12,163.20, 16,786.08 and 6,858.51 is: 9,465.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,163.20 : 16,786.08 = 6,858.51 : x
  2. Step 2: Convert to fraction form
    12,163.20/16,786.08 = 6,858.51/x
  3. Step 3: Cross multiply
    12,163.20x = 16,786.08 × 6,858.51
  4. Step 4: Simplify right side
    12,163.20x = 115,127,497.54
  5. Step 5: Solve for x
    x = 115,127,497.54/12,163.20
  6. Step 6: Final answer
    x = 9,465.23

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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.