Home / 7,938.61-11,911.89-3,262.09

Finding the Fourth Proportional to 7,938.61, 11,911.89 and 3,262.09

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Solution

The fourth proportional to 7,938.61, 11,911.89 and 3,262.09 is: 4,894.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,938.61 : 11,911.89 = 3,262.09 : x
  2. Step 2: Convert to fraction form
    7,938.61/11,911.89 = 3,262.09/x
  3. Step 3: Cross multiply
    7,938.61x = 11,911.89 × 3,262.09
  4. Step 4: Simplify right side
    7,938.61x = 38,857,657.25
  5. Step 5: Solve for x
    x = 38,857,657.25/7,938.61
  6. Step 6: Final answer
    x = 4,894.77

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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.