Home / 19,931.82-27,516.96-11,976

Finding the Fourth Proportional to 19,931.82, 27,516.96 and 11,976

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Solution

The fourth proportional to 19,931.82, 27,516.96 and 11,976 is: 16,533.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,931.82 : 27,516.96 = 11,976 : x
  2. Step 2: Convert to fraction form
    19,931.82/27,516.96 = 11,976/x
  3. Step 3: Cross multiply
    19,931.82x = 27,516.96 × 11,976
  4. Step 4: Simplify right side
    19,931.82x = 329,543,112.96
  5. Step 5: Solve for x
    x = 329,543,112.96/19,931.82
  6. Step 6: Final answer
    x = 16,533.52

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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.