Home / 10,450.50-15,680.39-4,222.68

Finding the Fourth Proportional to 10,450.50, 15,680.39 and 4,222.68

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Solution

The fourth proportional to 10,450.50, 15,680.39 and 4,222.68 is: 6,335.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,450.50 : 15,680.39 = 4,222.68 : x
  2. Step 2: Convert to fraction form
    10,450.50/15,680.39 = 4,222.68/x
  3. Step 3: Cross multiply
    10,450.50x = 15,680.39 × 4,222.68
  4. Step 4: Simplify right side
    10,450.50x = 66,213,205.03
  5. Step 5: Solve for x
    x = 66,213,205.03/10,450.50
  6. Step 6: Final answer
    x = 6,335.89

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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.