Home / 13,205.33-18,223.36-7,236.98

Finding the Fourth Proportional to 13,205.33, 18,223.36 and 7,236.98

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Solution

The fourth proportional to 13,205.33, 18,223.36 and 7,236.98 is: 9,987.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,205.33 : 18,223.36 = 7,236.98 : x
  2. Step 2: Convert to fraction form
    13,205.33/18,223.36 = 7,236.98/x
  3. Step 3: Cross multiply
    13,205.33x = 18,223.36 × 7,236.98
  4. Step 4: Simplify right side
    13,205.33x = 131,882,091.85
  5. Step 5: Solve for x
    x = 131,882,091.85/13,205.33
  6. Step 6: Final answer
    x = 9,987.03

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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.