Home / 8,481.45-11,704.12-5,123.68

Finding the Fourth Proportional to 8,481.45, 11,704.12 and 5,123.68

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Solution

The fourth proportional to 8,481.45, 11,704.12 and 5,123.68 is: 7,070.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,481.45 : 11,704.12 = 5,123.68 : x
  2. Step 2: Convert to fraction form
    8,481.45/11,704.12 = 5,123.68/x
  3. Step 3: Cross multiply
    8,481.45x = 11,704.12 × 5,123.68
  4. Step 4: Simplify right side
    8,481.45x = 59,968,142.71
  5. Step 5: Solve for x
    x = 59,968,142.71/8,481.45
  6. Step 6: Final answer
    x = 7,070.51

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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.