Home / 12,539.58-17,383.85-11,873.78

Finding the Fourth Proportional to 12,539.58, 17,383.85 and 11,873.78

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Solution

The fourth proportional to 12,539.58, 17,383.85 and 11,873.78 is: 16,460.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,539.58 : 17,383.85 = 11,873.78 : x
  2. Step 2: Convert to fraction form
    12,539.58/17,383.85 = 11,873.78/x
  3. Step 3: Cross multiply
    12,539.58x = 17,383.85 × 11,873.78
  4. Step 4: Simplify right side
    12,539.58x = 206,411,951.08
  5. Step 5: Solve for x
    x = 206,411,951.08/12,539.58
  6. Step 6: Final answer
    x = 16,460.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.