Home / 7,959.29-11,938.93-3,278.09

Finding the Fourth Proportional to 7,959.29, 11,938.93 and 3,278.09

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Solution

The fourth proportional to 7,959.29, 11,938.93 and 3,278.09 is: 4,917.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,959.29 : 11,938.93 = 3,278.09 : x
  2. Step 2: Convert to fraction form
    7,959.29/11,938.93 = 3,278.09/x
  3. Step 3: Cross multiply
    7,959.29x = 11,938.93 × 3,278.09
  4. Step 4: Simplify right side
    7,959.29x = 39,136,908.70
  5. Step 5: Solve for x
    x = 39,136,908.70/7,959.29
  6. Step 6: Final answer
    x = 4,917.14

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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.