Home / 7,972.94-11,959.61-3,813.39

Finding the Fourth Proportional to 7,972.94, 11,959.61 and 3,813.39

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Solution

The fourth proportional to 7,972.94, 11,959.61 and 3,813.39 is: 5,720.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,972.94 : 11,959.61 = 3,813.39 : x
  2. Step 2: Convert to fraction form
    7,972.94/11,959.61 = 3,813.39/x
  3. Step 3: Cross multiply
    7,972.94x = 11,959.61 × 3,813.39
  4. Step 4: Simplify right side
    7,972.94x = 45,606,638.11
  5. Step 5: Solve for x
    x = 45,606,638.11/7,972.94
  6. Step 6: Final answer
    x = 5,720.18

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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.