Home / 11,278.38-15,563.82-6,242.43

Finding the Fourth Proportional to 11,278.38, 15,563.82 and 6,242.43

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Solution

The fourth proportional to 11,278.38, 15,563.82 and 6,242.43 is: 8,614.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,278.38 : 15,563.82 = 6,242.43 : x
  2. Step 2: Convert to fraction form
    11,278.38/15,563.82 = 6,242.43/x
  3. Step 3: Cross multiply
    11,278.38x = 15,563.82 × 6,242.43
  4. Step 4: Simplify right side
    11,278.38x = 97,156,056.88
  5. Step 5: Solve for x
    x = 97,156,056.88/11,278.38
  6. Step 6: Final answer
    x = 8,614.36

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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.