Home / 12,161.99-18,238.49-4,262.36

Finding the Fourth Proportional to 12,161.99, 18,238.49 and 4,262.36

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Solution

The fourth proportional to 12,161.99, 18,238.49 and 4,262.36 is: 6,391.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,161.99 : 18,238.49 = 4,262.36 : x
  2. Step 2: Convert to fraction form
    12,161.99/18,238.49 = 4,262.36/x
  3. Step 3: Cross multiply
    12,161.99x = 18,238.49 × 4,262.36
  4. Step 4: Simplify right side
    12,161.99x = 77,738,897.73
  5. Step 5: Solve for x
    x = 77,738,897.73/12,161.99
  6. Step 6: Final answer
    x = 6,391.96

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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.