Home / 13,324.44-18,390.06-7,735.80

Finding the Fourth Proportional to 13,324.44, 18,390.06 and 7,735.80

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Solution

The fourth proportional to 13,324.44, 18,390.06 and 7,735.80 is: 10,676.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,324.44 : 18,390.06 = 7,735.80 : x
  2. Step 2: Convert to fraction form
    13,324.44/18,390.06 = 7,735.80/x
  3. Step 3: Cross multiply
    13,324.44x = 18,390.06 × 7,735.80
  4. Step 4: Simplify right side
    13,324.44x = 142,261,826.15
  5. Step 5: Solve for x
    x = 142,261,826.15/13,324.44
  6. Step 6: Final answer
    x = 10,676.76

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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.