Home / 7,972.65-11,955.78-3,293.38

Finding the Fourth Proportional to 7,972.65, 11,955.78 and 3,293.38

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Solution

The fourth proportional to 7,972.65, 11,955.78 and 3,293.38 is: 4,938.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,972.65 : 11,955.78 = 3,293.38 : x
  2. Step 2: Convert to fraction form
    7,972.65/11,955.78 = 3,293.38/x
  3. Step 3: Cross multiply
    7,972.65x = 11,955.78 × 3,293.38
  4. Step 4: Simplify right side
    7,972.65x = 39,374,926.74
  5. Step 5: Solve for x
    x = 39,374,926.74/7,972.65
  6. Step 6: Final answer
    x = 4,938.75

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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.