Home / 12,174.45-18,261.67-2,940.45

Finding the Fourth Proportional to 12,174.45, 18,261.67 and 2,940.45

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Solution

The fourth proportional to 12,174.45, 18,261.67 and 2,940.45 is: 4,410.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,174.45 : 18,261.67 = 2,940.45 : x
  2. Step 2: Convert to fraction form
    12,174.45/18,261.67 = 2,940.45/x
  3. Step 3: Cross multiply
    12,174.45x = 18,261.67 × 2,940.45
  4. Step 4: Simplify right side
    12,174.45x = 53,697,527.55
  5. Step 5: Solve for x
    x = 53,697,527.55/12,174.45
  6. Step 6: Final answer
    x = 4,410.67

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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.