Home / 18,972.54-26,187.84-11,016.72

Finding the Fourth Proportional to 18,972.54, 26,187.84 and 11,016.72

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Solution

The fourth proportional to 18,972.54, 26,187.84 and 11,016.72 is: 15,206.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,972.54 : 26,187.84 = 11,016.72 : x
  2. Step 2: Convert to fraction form
    18,972.54/26,187.84 = 11,016.72/x
  3. Step 3: Cross multiply
    18,972.54x = 26,187.84 × 11,016.72
  4. Step 4: Simplify right side
    18,972.54x = 288,504,100.68
  5. Step 5: Solve for x
    x = 288,504,100.68/18,972.54
  6. Step 6: Final answer
    x = 15,206.40

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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.