Home / 8,148.78-11,245.44-4,791.68

Finding the Fourth Proportional to 8,148.78, 11,245.44 and 4,791.68

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Solution

The fourth proportional to 8,148.78, 11,245.44 and 4,791.68 is: 6,612.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,148.78 : 11,245.44 = 4,791.68 : x
  2. Step 2: Convert to fraction form
    8,148.78/11,245.44 = 4,791.68/x
  3. Step 3: Cross multiply
    8,148.78x = 11,245.44 × 4,791.68
  4. Step 4: Simplify right side
    8,148.78x = 53,884,493.71
  5. Step 5: Solve for x
    x = 53,884,493.71/8,148.78
  6. Step 6: Final answer
    x = 6,612.58

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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.