Home / 12,144.24-18,190.80-5,576.04

Finding the Fourth Proportional to 12,144.24, 18,190.80 and 5,576.04

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Solution

The fourth proportional to 12,144.24, 18,190.80 and 5,576.04 is: 8,352.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,144.24 : 18,190.80 = 5,576.04 : x
  2. Step 2: Convert to fraction form
    12,144.24/18,190.80 = 5,576.04/x
  3. Step 3: Cross multiply
    12,144.24x = 18,190.80 × 5,576.04
  4. Step 4: Simplify right side
    12,144.24x = 101,432,628.43
  5. Step 5: Solve for x
    x = 101,432,628.43/12,144.24
  6. Step 6: Final answer
    x = 8,352.32

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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.