Home / 12,072.58-18,104.98-11,285.46

Finding the Fourth Proportional to 12,072.58, 18,104.98 and 11,285.46

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Solution

The fourth proportional to 12,072.58, 18,104.98 and 11,285.46 is: 16,924.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,072.58 : 18,104.98 = 11,285.46 : x
  2. Step 2: Convert to fraction form
    12,072.58/18,104.98 = 11,285.46/x
  3. Step 3: Cross multiply
    12,072.58x = 18,104.98 × 11,285.46
  4. Step 4: Simplify right side
    12,072.58x = 204,323,027.59
  5. Step 5: Solve for x
    x = 204,323,027.59/12,072.58
  6. Step 6: Final answer
    x = 16,924.55

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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.