Home / 11,511.11-17,229.76-7,756.00

Finding the Fourth Proportional to 11,511.11, 17,229.76 and 7,756.00

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Solution

The fourth proportional to 11,511.11, 17,229.76 and 7,756.00 is: 11,609.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,511.11 : 17,229.76 = 7,756.00 : x
  2. Step 2: Convert to fraction form
    11,511.11/17,229.76 = 7,756.00/x
  3. Step 3: Cross multiply
    11,511.11x = 17,229.76 × 7,756.00
  4. Step 4: Simplify right side
    11,511.11x = 133,634,096.64
  5. Step 5: Solve for x
    x = 133,634,096.64/11,511.11
  6. Step 6: Final answer
    x = 11,609.14

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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.