Home / 11,979.68-17,962.20-5,741.60

Finding the Fourth Proportional to 11,979.68, 17,962.20 and 5,741.60

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Solution

The fourth proportional to 11,979.68, 17,962.20 and 5,741.60 is: 8,608.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,979.68 : 17,962.20 = 5,741.60 : x
  2. Step 2: Convert to fraction form
    11,979.68/17,962.20 = 5,741.60/x
  3. Step 3: Cross multiply
    11,979.68x = 17,962.20 × 5,741.60
  4. Step 4: Simplify right side
    11,979.68x = 103,131,767.52
  5. Step 5: Solve for x
    x = 103,131,767.52/11,979.68
  6. Step 6: Final answer
    x = 8,608.89

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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.