Home / 11,905.82-17,860.11-4,515.80

Finding the Fourth Proportional to 11,905.82, 17,860.11 and 4,515.80

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Solution

The fourth proportional to 11,905.82, 17,860.11 and 4,515.80 is: 6,774.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,905.82 : 17,860.11 = 4,515.80 : x
  2. Step 2: Convert to fraction form
    11,905.82/17,860.11 = 4,515.80/x
  3. Step 3: Cross multiply
    11,905.82x = 17,860.11 × 4,515.80
  4. Step 4: Simplify right side
    11,905.82x = 80,652,684.74
  5. Step 5: Solve for x
    x = 80,652,684.74/11,905.82
  6. Step 6: Final answer
    x = 6,774.22

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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.