Home / 11,381.72-17,074.40-4,807.96

Finding the Fourth Proportional to 11,381.72, 17,074.40 and 4,807.96

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Solution

The fourth proportional to 11,381.72, 17,074.40 and 4,807.96 is: 7,212.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,381.72 : 17,074.40 = 4,807.96 : x
  2. Step 2: Convert to fraction form
    11,381.72/17,074.40 = 4,807.96/x
  3. Step 3: Cross multiply
    11,381.72x = 17,074.40 × 4,807.96
  4. Step 4: Simplify right side
    11,381.72x = 82,092,965.50
  5. Step 5: Solve for x
    x = 82,092,965.50/11,381.72
  6. Step 6: Final answer
    x = 7,212.71

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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.