Home / 11,316.72-16,975.29-3,921.42

Finding the Fourth Proportional to 11,316.72, 16,975.29 and 3,921.42

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Solution

The fourth proportional to 11,316.72, 16,975.29 and 3,921.42 is: 5,882.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,316.72 : 16,975.29 = 3,921.42 : x
  2. Step 2: Convert to fraction form
    11,316.72/16,975.29 = 3,921.42/x
  3. Step 3: Cross multiply
    11,316.72x = 16,975.29 × 3,921.42
  4. Step 4: Simplify right side
    11,316.72x = 66,567,241.71
  5. Step 5: Solve for x
    x = 66,567,241.71/11,316.72
  6. Step 6: Final answer
    x = 5,882.20

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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.