Home / 12,306.55-18,469.47-8,584.57

Finding the Fourth Proportional to 12,306.55, 18,469.47 and 8,584.57

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Solution

The fourth proportional to 12,306.55, 18,469.47 and 8,584.57 is: 12,883.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,306.55 : 18,469.47 = 8,584.57 : x
  2. Step 2: Convert to fraction form
    12,306.55/18,469.47 = 8,584.57/x
  3. Step 3: Cross multiply
    12,306.55x = 18,469.47 × 8,584.57
  4. Step 4: Simplify right side
    12,306.55x = 158,552,458.08
  5. Step 5: Solve for x
    x = 158,552,458.08/12,306.55
  6. Step 6: Final answer
    x = 12,883.58

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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.