Home / 13,992.92-19,310.20-7,619.41

Finding the Fourth Proportional to 13,992.92, 19,310.20 and 7,619.41

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Solution

The fourth proportional to 13,992.92, 19,310.20 and 7,619.41 is: 10,514.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,992.92 : 19,310.20 = 7,619.41 : x
  2. Step 2: Convert to fraction form
    13,992.92/19,310.20 = 7,619.41/x
  3. Step 3: Cross multiply
    13,992.92x = 19,310.20 × 7,619.41
  4. Step 4: Simplify right side
    13,992.92x = 147,132,336.07
  5. Step 5: Solve for x
    x = 147,132,336.07/13,992.92
  6. Step 6: Final answer
    x = 10,514.77

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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.