Home / 6,821.38-10,221.81-4,622.50

Finding the Fourth Proportional to 6,821.38, 10,221.81 and 4,622.50

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Solution

The fourth proportional to 6,821.38, 10,221.81 and 4,622.50 is: 6,926.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,821.38 : 10,221.81 = 4,622.50 : x
  2. Step 2: Convert to fraction form
    6,821.38/10,221.81 = 4,622.50/x
  3. Step 3: Cross multiply
    6,821.38x = 10,221.81 × 4,622.50
  4. Step 4: Simplify right side
    6,821.38x = 47,250,316.73
  5. Step 5: Solve for x
    x = 47,250,316.73/6,821.38
  6. Step 6: Final answer
    x = 6,926.80

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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.