Home / 11,110.50-16,665.75-2,902.50

Finding the Fourth Proportional to 11,110.50, 16,665.75 and 2,902.50

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Solution

The fourth proportional to 11,110.50, 16,665.75 and 2,902.50 is: 4,353.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,110.50 : 16,665.75 = 2,902.50 : x
  2. Step 2: Convert to fraction form
    11,110.50/16,665.75 = 2,902.50/x
  3. Step 3: Cross multiply
    11,110.50x = 16,665.75 × 2,902.50
  4. Step 4: Simplify right side
    11,110.50x = 48,372,339.38
  5. Step 5: Solve for x
    x = 48,372,339.38/11,110.50
  6. Step 6: Final answer
    x = 4,353.75

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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.