Home / 8,422.83-11,610.68-5,761.98

Finding the Fourth Proportional to 8,422.83, 11,610.68 and 5,761.98

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Solution

The fourth proportional to 8,422.83, 11,610.68 and 5,761.98 is: 7,942.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,422.83 : 11,610.68 = 5,761.98 : x
  2. Step 2: Convert to fraction form
    8,422.83/11,610.68 = 5,761.98/x
  3. Step 3: Cross multiply
    8,422.83x = 11,610.68 × 5,761.98
  4. Step 4: Simplify right side
    8,422.83x = 66,900,477.14
  5. Step 5: Solve for x
    x = 66,900,477.14/8,422.83
  6. Step 6: Final answer
    x = 7,942.76

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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.