Home / 19,836.09-29,747.16-7,986.33

Finding the Fourth Proportional to 19,836.09, 29,747.16 and 7,986.33

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Solution

The fourth proportional to 19,836.09, 29,747.16 and 7,986.33 is: 11,976.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,836.09 : 29,747.16 = 7,986.33 : x
  2. Step 2: Convert to fraction form
    19,836.09/29,747.16 = 7,986.33/x
  3. Step 3: Cross multiply
    19,836.09x = 29,747.16 × 7,986.33
  4. Step 4: Simplify right side
    19,836.09x = 237,570,636.32
  5. Step 5: Solve for x
    x = 237,570,636.32/19,836.09
  6. Step 6: Final answer
    x = 11,976.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.