Home / 18,220.30-25,127.31-11,936.14

Finding the Fourth Proportional to 18,220.30, 25,127.31 and 11,936.14

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Solution

The fourth proportional to 18,220.30, 25,127.31 and 11,936.14 is: 16,460.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,220.30 : 25,127.31 = 11,936.14 : x
  2. Step 2: Convert to fraction form
    18,220.30/25,127.31 = 11,936.14/x
  3. Step 3: Cross multiply
    18,220.30x = 25,127.31 × 11,936.14
  4. Step 4: Simplify right side
    18,220.30x = 299,923,089.98
  5. Step 5: Solve for x
    x = 299,923,089.98/18,220.30
  6. Step 6: Final answer
    x = 16,460.93

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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.