Home / 15,743.97-21,725.82-8,669.84

Finding the Fourth Proportional to 15,743.97, 21,725.82 and 8,669.84

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Solution

The fourth proportional to 15,743.97, 21,725.82 and 8,669.84 is: 11,963.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,743.97 : 21,725.82 = 8,669.84 : x
  2. Step 2: Convert to fraction form
    15,743.97/21,725.82 = 8,669.84/x
  3. Step 3: Cross multiply
    15,743.97x = 21,725.82 × 8,669.84
  4. Step 4: Simplify right side
    15,743.97x = 188,359,274.64
  5. Step 5: Solve for x
    x = 188,359,274.64/15,743.97
  6. Step 6: Final answer
    x = 11,963.90

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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.