Home / 8,241.12-11,372.88-4,515.12

Finding the Fourth Proportional to 8,241.12, 11,372.88 and 4,515.12

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Solution

The fourth proportional to 8,241.12, 11,372.88 and 4,515.12 is: 6,230.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,241.12 : 11,372.88 = 4,515.12 : x
  2. Step 2: Convert to fraction form
    8,241.12/11,372.88 = 4,515.12/x
  3. Step 3: Cross multiply
    8,241.12x = 11,372.88 × 4,515.12
  4. Step 4: Simplify right side
    8,241.12x = 51,349,917.95
  5. Step 5: Solve for x
    x = 51,349,917.95/8,241.12
  6. Step 6: Final answer
    x = 6,230.94

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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.