Home / 12,163.82-16,786.10-6,858.63

Finding the Fourth Proportional to 12,163.82, 16,786.10 and 6,858.63

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Solution

The fourth proportional to 12,163.82, 16,786.10 and 6,858.63 is: 9,464.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,163.82 : 16,786.10 = 6,858.63 : x
  2. Step 2: Convert to fraction form
    12,163.82/16,786.10 = 6,858.63/x
  3. Step 3: Cross multiply
    12,163.82x = 16,786.10 × 6,858.63
  4. Step 4: Simplify right side
    12,163.82x = 115,129,666.19
  5. Step 5: Solve for x
    x = 115,129,666.19/12,163.82
  6. Step 6: Final answer
    x = 9,464.93

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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.