Home / 19,707.12-27,198.12-11,212.32

Finding the Fourth Proportional to 19,707.12, 27,198.12 and 11,212.32

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Solution

The fourth proportional to 19,707.12, 27,198.12 and 11,212.32 is: 15,474.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,707.12 : 27,198.12 = 11,212.32 : x
  2. Step 2: Convert to fraction form
    19,707.12/27,198.12 = 11,212.32/x
  3. Step 3: Cross multiply
    19,707.12x = 27,198.12 × 11,212.32
  4. Step 4: Simplify right side
    19,707.12x = 304,954,024.84
  5. Step 5: Solve for x
    x = 304,954,024.84/19,707.12
  6. Step 6: Final answer
    x = 15,474.31

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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.