Home / 7,965.96-11,949.06-2,123.40

Finding the Fourth Proportional to 7,965.96, 11,949.06 and 2,123.40

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Solution

The fourth proportional to 7,965.96, 11,949.06 and 2,123.40 is: 3,185.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,965.96 : 11,949.06 = 2,123.40 : x
  2. Step 2: Convert to fraction form
    7,965.96/11,949.06 = 2,123.40/x
  3. Step 3: Cross multiply
    7,965.96x = 11,949.06 × 2,123.40
  4. Step 4: Simplify right side
    7,965.96x = 25,372,634.00
  5. Step 5: Solve for x
    x = 25,372,634.00/7,965.96
  6. Step 6: Final answer
    x = 3,185.13

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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.