Home / 11,193.12-16,757.28-7,719.84

Finding the Fourth Proportional to 11,193.12, 16,757.28 and 7,719.84

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Solution

The fourth proportional to 11,193.12, 16,757.28 and 7,719.84 is: 11,557.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,193.12 : 16,757.28 = 7,719.84 : x
  2. Step 2: Convert to fraction form
    11,193.12/16,757.28 = 7,719.84/x
  3. Step 3: Cross multiply
    11,193.12x = 16,757.28 × 7,719.84
  4. Step 4: Simplify right side
    11,193.12x = 129,363,520.44
  5. Step 5: Solve for x
    x = 129,363,520.44/11,193.12
  6. Step 6: Final answer
    x = 11,557.41

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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.