Home / 19,896.96-27,456.80-11,937.60

Finding the Fourth Proportional to 19,896.96, 27,456.80 and 11,937.60

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Solution

The fourth proportional to 19,896.96, 27,456.80 and 11,937.60 is: 16,473.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,896.96 : 27,456.80 = 11,937.60 : x
  2. Step 2: Convert to fraction form
    19,896.96/27,456.80 = 11,937.60/x
  3. Step 3: Cross multiply
    19,896.96x = 27,456.80 × 11,937.60
  4. Step 4: Simplify right side
    19,896.96x = 327,768,295.68
  5. Step 5: Solve for x
    x = 327,768,295.68/19,896.96
  6. Step 6: Final answer
    x = 16,473.29

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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.