Home / 19,636.68-27,104.40-11,982.72

Finding the Fourth Proportional to 19,636.68, 27,104.40 and 11,982.72

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Solution

The fourth proportional to 19,636.68, 27,104.40 and 11,982.72 is: 16,539.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,636.68 : 27,104.40 = 11,982.72 : x
  2. Step 2: Convert to fraction form
    19,636.68/27,104.40 = 11,982.72/x
  3. Step 3: Cross multiply
    19,636.68x = 27,104.40 × 11,982.72
  4. Step 4: Simplify right side
    19,636.68x = 324,784,435.97
  5. Step 5: Solve for x
    x = 324,784,435.97/19,636.68
  6. Step 6: Final answer
    x = 16,539.68

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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.