Home / 11,817.05-17,724.20-4,789.94

Finding the Fourth Proportional to 11,817.05, 17,724.20 and 4,789.94

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Solution

The fourth proportional to 11,817.05, 17,724.20 and 4,789.94 is: 7,184.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,817.05 : 17,724.20 = 4,789.94 : x
  2. Step 2: Convert to fraction form
    11,817.05/17,724.20 = 4,789.94/x
  3. Step 3: Cross multiply
    11,817.05x = 17,724.20 × 4,789.94
  4. Step 4: Simplify right side
    11,817.05x = 84,897,741.98
  5. Step 5: Solve for x
    x = 84,897,741.98/11,817.05
  6. Step 6: Final answer
    x = 7,184.35

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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.