Home / 7,447.82-11,167.86-2,515.64

Finding the Fourth Proportional to 7,447.82, 11,167.86 and 2,515.64

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Solution

The fourth proportional to 7,447.82, 11,167.86 and 2,515.64 is: 3,772.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,447.82 : 11,167.86 = 2,515.64 : x
  2. Step 2: Convert to fraction form
    7,447.82/11,167.86 = 2,515.64/x
  3. Step 3: Cross multiply
    7,447.82x = 11,167.86 × 2,515.64
  4. Step 4: Simplify right side
    7,447.82x = 28,094,315.33
  5. Step 5: Solve for x
    x = 28,094,315.33/7,447.82
  6. Step 6: Final answer
    x = 3,772.15

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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.