Home / 13,584.80-18,747.92-7,616.85

Finding the Fourth Proportional to 13,584.80, 18,747.92 and 7,616.85

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Solution

The fourth proportional to 13,584.80, 18,747.92 and 7,616.85 is: 10,511.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,584.80 : 18,747.92 = 7,616.85 : x
  2. Step 2: Convert to fraction form
    13,584.80/18,747.92 = 7,616.85/x
  3. Step 3: Cross multiply
    13,584.80x = 18,747.92 × 7,616.85
  4. Step 4: Simplify right side
    13,584.80x = 142,800,056.37
  5. Step 5: Solve for x
    x = 142,800,056.37/13,584.80
  6. Step 6: Final answer
    x = 10,511.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.