Home / 13,205.37-18,222.98-7,236.98

Finding the Fourth Proportional to 13,205.37, 18,222.98 and 7,236.98

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Solution

The fourth proportional to 13,205.37, 18,222.98 and 7,236.98 is: 9,986.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,205.37 : 18,222.98 = 7,236.98 : x
  2. Step 2: Convert to fraction form
    13,205.37/18,222.98 = 7,236.98/x
  3. Step 3: Cross multiply
    13,205.37x = 18,222.98 × 7,236.98
  4. Step 4: Simplify right side
    13,205.37x = 131,879,214.50
  5. Step 5: Solve for x
    x = 131,879,214.50/13,205.37
  6. Step 6: Final answer
    x = 9,986.79

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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.