Home / 14,049.89-21,076.91-5,286.86

Finding the Fourth Proportional to 14,049.89, 21,076.91 and 5,286.86

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Solution

The fourth proportional to 14,049.89, 21,076.91 and 5,286.86 is: 7,931.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,049.89 : 21,076.91 = 5,286.86 : x
  2. Step 2: Convert to fraction form
    14,049.89/21,076.91 = 5,286.86/x
  3. Step 3: Cross multiply
    14,049.89x = 21,076.91 × 5,286.86
  4. Step 4: Simplify right side
    14,049.89x = 111,430,540.58
  5. Step 5: Solve for x
    x = 111,430,540.58/14,049.89
  6. Step 6: Final answer
    x = 7,931.06

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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.