Home / 12,609.94-18,917.72-3,845.54

Finding the Fourth Proportional to 12,609.94, 18,917.72 and 3,845.54

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Solution

The fourth proportional to 12,609.94, 18,917.72 and 3,845.54 is: 5,769.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,609.94 : 18,917.72 = 3,845.54 : x
  2. Step 2: Convert to fraction form
    12,609.94/18,917.72 = 3,845.54/x
  3. Step 3: Cross multiply
    12,609.94x = 18,917.72 × 3,845.54
  4. Step 4: Simplify right side
    12,609.94x = 72,748,848.97
  5. Step 5: Solve for x
    x = 72,748,848.97/12,609.94
  6. Step 6: Final answer
    x = 5,769.17

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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.