Home / 12,162.74-18,249.77-11,966.18

Finding the Fourth Proportional to 12,162.74, 18,249.77 and 11,966.18

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Solution

The fourth proportional to 12,162.74, 18,249.77 and 11,966.18 is: 17,954.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,162.74 : 18,249.77 = 11,966.18 : x
  2. Step 2: Convert to fraction form
    12,162.74/18,249.77 = 11,966.18/x
  3. Step 3: Cross multiply
    12,162.74x = 18,249.77 × 11,966.18
  4. Step 4: Simplify right side
    12,162.74x = 218,379,971.45
  5. Step 5: Solve for x
    x = 218,379,971.45/12,162.74
  6. Step 6: Final answer
    x = 17,954.84

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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.