Home / 11,266.48-16,885.14-5,419.90

Finding the Fourth Proportional to 11,266.48, 16,885.14 and 5,419.90

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Solution

The fourth proportional to 11,266.48, 16,885.14 and 5,419.90 is: 8,122.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,266.48 : 16,885.14 = 5,419.90 : x
  2. Step 2: Convert to fraction form
    11,266.48/16,885.14 = 5,419.90/x
  3. Step 3: Cross multiply
    11,266.48x = 16,885.14 × 5,419.90
  4. Step 4: Simplify right side
    11,266.48x = 91,515,770.29
  5. Step 5: Solve for x
    x = 91,515,770.29/11,266.48
  6. Step 6: Final answer
    x = 8,122.84

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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.