Home / 9,911.45-13,677.39-5,930.21

Finding the Fourth Proportional to 9,911.45, 13,677.39 and 5,930.21

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Solution

The fourth proportional to 9,911.45, 13,677.39 and 5,930.21 is: 8,183.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,911.45 : 13,677.39 = 5,930.21 : x
  2. Step 2: Convert to fraction form
    9,911.45/13,677.39 = 5,930.21/x
  3. Step 3: Cross multiply
    9,911.45x = 13,677.39 × 5,930.21
  4. Step 4: Simplify right side
    9,911.45x = 81,109,794.95
  5. Step 5: Solve for x
    x = 81,109,794.95/9,911.45
  6. Step 6: Final answer
    x = 8,183.44

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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.