Home / 18,729.54-25,844.13-10,768.86

Finding the Fourth Proportional to 18,729.54, 25,844.13 and 10,768.86

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Solution

The fourth proportional to 18,729.54, 25,844.13 and 10,768.86 is: 14,859.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,729.54 : 25,844.13 = 10,768.86 : x
  2. Step 2: Convert to fraction form
    18,729.54/25,844.13 = 10,768.86/x
  3. Step 3: Cross multiply
    18,729.54x = 25,844.13 × 10,768.86
  4. Step 4: Simplify right side
    18,729.54x = 278,311,817.79
  5. Step 5: Solve for x
    x = 278,311,817.79/18,729.54
  6. Step 6: Final answer
    x = 14,859.51

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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.