Home / 12,729.89-19,097.53-3,845.88

Finding the Fourth Proportional to 12,729.89, 19,097.53 and 3,845.88

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Solution

The fourth proportional to 12,729.89, 19,097.53 and 3,845.88 is: 5,769.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,729.89 : 19,097.53 = 3,845.88 : x
  2. Step 2: Convert to fraction form
    12,729.89/19,097.53 = 3,845.88/x
  3. Step 3: Cross multiply
    12,729.89x = 19,097.53 × 3,845.88
  4. Step 4: Simplify right side
    12,729.89x = 73,446,808.68
  5. Step 5: Solve for x
    x = 73,446,808.68/12,729.89
  6. Step 6: Final answer
    x = 5,769.64

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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.