Home / 18,601.36-27,915.72-13,684.48

Finding the Fourth Proportional to 18,601.36, 27,915.72 and 13,684.48

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Solution

The fourth proportional to 18,601.36, 27,915.72 and 13,684.48 is: 20,536.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,601.36 : 27,915.72 = 13,684.48 : x
  2. Step 2: Convert to fraction form
    18,601.36/27,915.72 = 13,684.48/x
  3. Step 3: Cross multiply
    18,601.36x = 27,915.72 × 13,684.48
  4. Step 4: Simplify right side
    18,601.36x = 382,012,112.03
  5. Step 5: Solve for x
    x = 382,012,112.03/18,601.36
  6. Step 6: Final answer
    x = 20,536.78

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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.