Home / 10,941.80-16,391.10-6,546.20

Finding the Fourth Proportional to 10,941.80, 16,391.10 and 6,546.20

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Solution

The fourth proportional to 10,941.80, 16,391.10 and 6,546.20 is: 9,806.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,941.80 : 16,391.10 = 6,546.20 : x
  2. Step 2: Convert to fraction form
    10,941.80/16,391.10 = 6,546.20/x
  3. Step 3: Cross multiply
    10,941.80x = 16,391.10 × 6,546.20
  4. Step 4: Simplify right side
    10,941.80x = 107,299,418.82
  5. Step 5: Solve for x
    x = 107,299,418.82/10,941.80
  6. Step 6: Final answer
    x = 9,806.38

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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.