Home / 18,728.85-25,846.92-10,771.95

Finding the Fourth Proportional to 18,728.85, 25,846.92 and 10,771.95

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Solution

The fourth proportional to 18,728.85, 25,846.92 and 10,771.95 is: 14,865.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,728.85 : 25,846.92 = 10,771.95 : x
  2. Step 2: Convert to fraction form
    18,728.85/25,846.92 = 10,771.95/x
  3. Step 3: Cross multiply
    18,728.85x = 25,846.92 × 10,771.95
  4. Step 4: Simplify right side
    18,728.85x = 278,421,729.89
  5. Step 5: Solve for x
    x = 278,421,729.89/18,728.85
  6. Step 6: Final answer
    x = 14,865.93

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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.