Home / 11,278.48-16,918.53-3,486.28

Finding the Fourth Proportional to 11,278.48, 16,918.53 and 3,486.28

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Solution

The fourth proportional to 11,278.48, 16,918.53 and 3,486.28 is: 5,229.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,278.48 : 16,918.53 = 3,486.28 : x
  2. Step 2: Convert to fraction form
    11,278.48/16,918.53 = 3,486.28/x
  3. Step 3: Cross multiply
    11,278.48x = 16,918.53 × 3,486.28
  4. Step 4: Simplify right side
    11,278.48x = 58,982,732.77
  5. Step 5: Solve for x
    x = 58,982,732.77/11,278.48
  6. Step 6: Final answer
    x = 5,229.67

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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.