Home / 19,489.62-26,897.76-11,940.96

Finding the Fourth Proportional to 19,489.62, 26,897.76 and 11,940.96

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Solution

The fourth proportional to 19,489.62, 26,897.76 and 11,940.96 is: 16,479.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,489.62 : 26,897.76 = 11,940.96 : x
  2. Step 2: Convert to fraction form
    19,489.62/26,897.76 = 11,940.96/x
  3. Step 3: Cross multiply
    19,489.62x = 26,897.76 × 11,940.96
  4. Step 4: Simplify right side
    19,489.62x = 321,185,076.25
  5. Step 5: Solve for x
    x = 321,185,076.25/19,489.62
  6. Step 6: Final answer
    x = 16,479.80

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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.