Home / 12,485.40-17,194.77-12,213.24

Finding the Fourth Proportional to 12,485.40, 17,194.77 and 12,213.24

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Solution

The fourth proportional to 12,485.40, 17,194.77 and 12,213.24 is: 16,819.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,485.40 : 17,194.77 = 12,213.24 : x
  2. Step 2: Convert to fraction form
    12,485.40/17,194.77 = 12,213.24/x
  3. Step 3: Cross multiply
    12,485.40x = 17,194.77 × 12,213.24
  4. Step 4: Simplify right side
    12,485.40x = 210,003,852.75
  5. Step 5: Solve for x
    x = 210,003,852.75/12,485.40
  6. Step 6: Final answer
    x = 16,819.95

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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.