Home / 7,217.20-9,961.62-4,705.54

Finding the Fourth Proportional to 7,217.20, 9,961.62 and 4,705.54

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Solution

The fourth proportional to 7,217.20, 9,961.62 and 4,705.54 is: 6,494.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,217.20 : 9,961.62 = 4,705.54 : x
  2. Step 2: Convert to fraction form
    7,217.20/9,961.62 = 4,705.54/x
  3. Step 3: Cross multiply
    7,217.20x = 9,961.62 × 4,705.54
  4. Step 4: Simplify right side
    7,217.20x = 46,874,801.37
  5. Step 5: Solve for x
    x = 46,874,801.37/7,217.20
  6. Step 6: Final answer
    x = 6,494.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.