Home / 18,243.68-25,187.16-11,966.96

Finding the Fourth Proportional to 18,243.68, 25,187.16 and 11,966.96

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Solution

The fourth proportional to 18,243.68, 25,187.16 and 11,966.96 is: 16,521.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,243.68 : 25,187.16 = 11,966.96 : x
  2. Step 2: Convert to fraction form
    18,243.68/25,187.16 = 11,966.96/x
  3. Step 3: Cross multiply
    18,243.68x = 25,187.16 × 11,966.96
  4. Step 4: Simplify right side
    18,243.68x = 301,413,736.23
  5. Step 5: Solve for x
    x = 301,413,736.23/18,243.68
  6. Step 6: Final answer
    x = 16,521.54

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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.