Home / 8,941.36-13,379.82-5,418.40

Finding the Fourth Proportional to 8,941.36, 13,379.82 and 5,418.40

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Solution

The fourth proportional to 8,941.36, 13,379.82 and 5,418.40 is: 8,108.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,941.36 : 13,379.82 = 5,418.40 : x
  2. Step 2: Convert to fraction form
    8,941.36/13,379.82 = 5,418.40/x
  3. Step 3: Cross multiply
    8,941.36x = 13,379.82 × 5,418.40
  4. Step 4: Simplify right side
    8,941.36x = 72,497,216.69
  5. Step 5: Solve for x
    x = 72,497,216.69/8,941.36
  6. Step 6: Final answer
    x = 8,108.07

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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.