Home / 11,242.78-15,515.90-6,207.97

Finding the Fourth Proportional to 11,242.78, 15,515.90 and 6,207.97

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Solution

The fourth proportional to 11,242.78, 15,515.90 and 6,207.97 is: 8,567.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,242.78 : 15,515.90 = 6,207.97 : x
  2. Step 2: Convert to fraction form
    11,242.78/15,515.90 = 6,207.97/x
  3. Step 3: Cross multiply
    11,242.78x = 15,515.90 × 6,207.97
  4. Step 4: Simplify right side
    11,242.78x = 96,322,241.72
  5. Step 5: Solve for x
    x = 96,322,241.72/11,242.78
  6. Step 6: Final answer
    x = 8,567.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.