Home / 8,983.88-13,481.28-3,789.76

Finding the Fourth Proportional to 8,983.88, 13,481.28 and 3,789.76

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Solution

The fourth proportional to 8,983.88, 13,481.28 and 3,789.76 is: 5,686.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,983.88 : 13,481.28 = 3,789.76 : x
  2. Step 2: Convert to fraction form
    8,983.88/13,481.28 = 3,789.76/x
  3. Step 3: Cross multiply
    8,983.88x = 13,481.28 × 3,789.76
  4. Step 4: Simplify right side
    8,983.88x = 51,090,815.69
  5. Step 5: Solve for x
    x = 51,090,815.69/8,983.88
  6. Step 6: Final answer
    x = 5,686.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.