Home / 18,664.37-25,759.79-11,111.03

Finding the Fourth Proportional to 18,664.37, 25,759.79 and 11,111.03

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Solution

The fourth proportional to 18,664.37, 25,759.79 and 11,111.03 is: 15,334.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,664.37 : 25,759.79 = 11,111.03 : x
  2. Step 2: Convert to fraction form
    18,664.37/25,759.79 = 11,111.03/x
  3. Step 3: Cross multiply
    18,664.37x = 25,759.79 × 11,111.03
  4. Step 4: Simplify right side
    18,664.37x = 286,217,743.93
  5. Step 5: Solve for x
    x = 286,217,743.93/18,664.37
  6. Step 6: Final answer
    x = 15,334.98

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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.