Home / 13,634.07-18,815.94-8,324.52

Finding the Fourth Proportional to 13,634.07, 18,815.94 and 8,324.52

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Solution

The fourth proportional to 13,634.07, 18,815.94 and 8,324.52 is: 11,488.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,634.07 : 18,815.94 = 8,324.52 : x
  2. Step 2: Convert to fraction form
    13,634.07/18,815.94 = 8,324.52/x
  3. Step 3: Cross multiply
    13,634.07x = 18,815.94 × 8,324.52
  4. Step 4: Simplify right side
    13,634.07x = 156,633,668.85
  5. Step 5: Solve for x
    x = 156,633,668.85/13,634.07
  6. Step 6: Final answer
    x = 11,488.40

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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.