Home / 7,941.24-11,909.43-5,491.80

Finding the Fourth Proportional to 7,941.24, 11,909.43 and 5,491.80

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Solution

The fourth proportional to 7,941.24, 11,909.43 and 5,491.80 is: 8,236.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,941.24 : 11,909.43 = 5,491.80 : x
  2. Step 2: Convert to fraction form
    7,941.24/11,909.43 = 5,491.80/x
  3. Step 3: Cross multiply
    7,941.24x = 11,909.43 × 5,491.80
  4. Step 4: Simplify right side
    7,941.24x = 65,404,207.67
  5. Step 5: Solve for x
    x = 65,404,207.67/7,941.24
  6. Step 6: Final answer
    x = 8,236.02

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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.