Home / 19,718.97-27,208.67-11,219.74

Finding the Fourth Proportional to 19,718.97, 27,208.67 and 11,219.74

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Solution

The fourth proportional to 19,718.97, 27,208.67 and 11,219.74 is: 15,481.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,718.97 : 27,208.67 = 11,219.74 : x
  2. Step 2: Convert to fraction form
    19,718.97/27,208.67 = 11,219.74/x
  3. Step 3: Cross multiply
    19,718.97x = 27,208.67 × 11,219.74
  4. Step 4: Simplify right side
    19,718.97x = 305,274,203.15
  5. Step 5: Solve for x
    x = 305,274,203.15/19,718.97
  6. Step 6: Final answer
    x = 15,481.24

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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.