Home / 14,146.84-21,223.29-4,286.88

Finding the Fourth Proportional to 14,146.84, 21,223.29 and 4,286.88

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Solution

The fourth proportional to 14,146.84, 21,223.29 and 4,286.88 is: 6,431.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,146.84 : 21,223.29 = 4,286.88 : x
  2. Step 2: Convert to fraction form
    14,146.84/21,223.29 = 4,286.88/x
  3. Step 3: Cross multiply
    14,146.84x = 21,223.29 × 4,286.88
  4. Step 4: Simplify right side
    14,146.84x = 90,981,697.44
  5. Step 5: Solve for x
    x = 90,981,697.44/14,146.84
  6. Step 6: Final answer
    x = 6,431.24

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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.