Home / 12,736.42-18,995.75-11,186.62

Finding the Fourth Proportional to 12,736.42, 18,995.75 and 11,186.62

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Solution

The fourth proportional to 12,736.42, 18,995.75 and 11,186.62 is: 16,684.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,736.42 : 18,995.75 = 11,186.62 : x
  2. Step 2: Convert to fraction form
    12,736.42/18,995.75 = 11,186.62/x
  3. Step 3: Cross multiply
    12,736.42x = 18,995.75 × 11,186.62
  4. Step 4: Simplify right side
    12,736.42x = 212,498,236.87
  5. Step 5: Solve for x
    x = 212,498,236.87/12,736.42
  6. Step 6: Final answer
    x = 16,684.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.