Home / 8,272.42-11,416.53-4,735.78

Finding the Fourth Proportional to 8,272.42, 11,416.53 and 4,735.78

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Solution

The fourth proportional to 8,272.42, 11,416.53 and 4,735.78 is: 6,535.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,272.42 : 11,416.53 = 4,735.78 : x
  2. Step 2: Convert to fraction form
    8,272.42/11,416.53 = 4,735.78/x
  3. Step 3: Cross multiply
    8,272.42x = 11,416.53 × 4,735.78
  4. Step 4: Simplify right side
    8,272.42x = 54,066,174.44
  5. Step 5: Solve for x
    x = 54,066,174.44/8,272.42
  6. Step 6: Final answer
    x = 6,535.71

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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.