Home / 11,163.40-16,730.76-4,919.36

Finding the Fourth Proportional to 11,163.40, 16,730.76 and 4,919.36

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Solution

The fourth proportional to 11,163.40, 16,730.76 and 4,919.36 is: 7,372.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,163.40 : 16,730.76 = 4,919.36 : x
  2. Step 2: Convert to fraction form
    11,163.40/16,730.76 = 4,919.36/x
  3. Step 3: Cross multiply
    11,163.40x = 16,730.76 × 4,919.36
  4. Step 4: Simplify right side
    11,163.40x = 82,304,631.51
  5. Step 5: Solve for x
    x = 82,304,631.51/11,163.40
  6. Step 6: Final answer
    x = 7,372.72

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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.