Home / 13,204.45-18,222.60-7,236.64

Finding the Fourth Proportional to 13,204.45, 18,222.60 and 7,236.64

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Solution

The fourth proportional to 13,204.45, 18,222.60 and 7,236.64 is: 9,986.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,204.45 : 18,222.60 = 7,236.64 : x
  2. Step 2: Convert to fraction form
    13,204.45/18,222.60 = 7,236.64/x
  3. Step 3: Cross multiply
    13,204.45x = 18,222.60 × 7,236.64
  4. Step 4: Simplify right side
    13,204.45x = 131,870,396.06
  5. Step 5: Solve for x
    x = 131,870,396.06/13,204.45
  6. Step 6: Final answer
    x = 9,986.81

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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.