Home / 12,910.35-19,359.77-3,674.19

Finding the Fourth Proportional to 12,910.35, 19,359.77 and 3,674.19

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Solution

The fourth proportional to 12,910.35, 19,359.77 and 3,674.19 is: 5,509.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,910.35 : 19,359.77 = 3,674.19 : x
  2. Step 2: Convert to fraction form
    12,910.35/19,359.77 = 3,674.19/x
  3. Step 3: Cross multiply
    12,910.35x = 19,359.77 × 3,674.19
  4. Step 4: Simplify right side
    12,910.35x = 71,131,454.97
  5. Step 5: Solve for x
    x = 71,131,454.97/12,910.35
  6. Step 6: Final answer
    x = 5,509.65

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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.