Home / 19,708.55-27,197.79-12,634.97

Finding the Fourth Proportional to 19,708.55, 27,197.79 and 12,634.97

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Solution

The fourth proportional to 19,708.55, 27,197.79 and 12,634.97 is: 17,436.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,708.55 : 27,197.79 = 12,634.97 : x
  2. Step 2: Convert to fraction form
    19,708.55/27,197.79 = 12,634.97/x
  3. Step 3: Cross multiply
    19,708.55x = 27,197.79 × 12,634.97
  4. Step 4: Simplify right side
    19,708.55x = 343,643,124.73
  5. Step 5: Solve for x
    x = 343,643,124.73/19,708.55
  6. Step 6: Final answer
    x = 17,436.25

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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.