Home / 12,173.75-18,258.87-3,289.60

Finding the Fourth Proportional to 12,173.75, 18,258.87 and 3,289.60

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Solution

The fourth proportional to 12,173.75, 18,258.87 and 3,289.60 is: 4,933.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,173.75 : 18,258.87 = 3,289.60 : x
  2. Step 2: Convert to fraction form
    12,173.75/18,258.87 = 3,289.60/x
  3. Step 3: Cross multiply
    12,173.75x = 18,258.87 × 3,289.60
  4. Step 4: Simplify right side
    12,173.75x = 60,064,333.04
  5. Step 5: Solve for x
    x = 60,064,333.04/12,173.75
  6. Step 6: Final answer
    x = 4,933.92

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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.