Home / 12,187.97-16,819.85-6,883.58

Finding the Fourth Proportional to 12,187.97, 16,819.85 and 6,883.58

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Solution

The fourth proportional to 12,187.97, 16,819.85 and 6,883.58 is: 9,499.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,187.97 : 16,819.85 = 6,883.58 : x
  2. Step 2: Convert to fraction form
    12,187.97/16,819.85 = 6,883.58/x
  3. Step 3: Cross multiply
    12,187.97x = 16,819.85 × 6,883.58
  4. Step 4: Simplify right side
    12,187.97x = 115,780,842.32
  5. Step 5: Solve for x
    x = 115,780,842.32/12,187.97
  6. Step 6: Final answer
    x = 9,499.60

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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.