Home / 13,775.36-20,660.95-4,414.39

Finding the Fourth Proportional to 13,775.36, 20,660.95 and 4,414.39

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Solution

The fourth proportional to 13,775.36, 20,660.95 and 4,414.39 is: 6,620.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,775.36 : 20,660.95 = 4,414.39 : x
  2. Step 2: Convert to fraction form
    13,775.36/20,660.95 = 4,414.39/x
  3. Step 3: Cross multiply
    13,775.36x = 20,660.95 × 4,414.39
  4. Step 4: Simplify right side
    13,775.36x = 91,205,365.69
  5. Step 5: Solve for x
    x = 91,205,365.69/13,775.36
  6. Step 6: Final answer
    x = 6,620.91

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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.