Home / 14,222.70-21,336.21-6,825.78

Finding the Fourth Proportional to 14,222.70, 21,336.21 and 6,825.78

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Solution

The fourth proportional to 14,222.70, 21,336.21 and 6,825.78 is: 10,239.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,222.70 : 21,336.21 = 6,825.78 : x
  2. Step 2: Convert to fraction form
    14,222.70/21,336.21 = 6,825.78/x
  3. Step 3: Cross multiply
    14,222.70x = 21,336.21 × 6,825.78
  4. Step 4: Simplify right side
    14,222.70x = 145,636,275.49
  5. Step 5: Solve for x
    x = 145,636,275.49/14,222.70
  6. Step 6: Final answer
    x = 10,239.71

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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.