Home / 12,644.45-18,960.62-5,975.40

Finding the Fourth Proportional to 12,644.45, 18,960.62 and 5,975.40

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Solution

The fourth proportional to 12,644.45, 18,960.62 and 5,975.40 is: 8,960.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,644.45 : 18,960.62 = 5,975.40 : x
  2. Step 2: Convert to fraction form
    12,644.45/18,960.62 = 5,975.40/x
  3. Step 3: Cross multiply
    12,644.45x = 18,960.62 × 5,975.40
  4. Step 4: Simplify right side
    12,644.45x = 113,297,380.39
  5. Step 5: Solve for x
    x = 113,297,380.39/12,644.45
  6. Step 6: Final answer
    x = 8,960.24

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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.