Home / 7,915.94-11,873.92-2,721.81

Finding the Fourth Proportional to 7,915.94, 11,873.92 and 2,721.81

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Solution

The fourth proportional to 7,915.94, 11,873.92 and 2,721.81 is: 4,082.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,915.94 : 11,873.92 = 2,721.81 : x
  2. Step 2: Convert to fraction form
    7,915.94/11,873.92 = 2,721.81/x
  3. Step 3: Cross multiply
    7,915.94x = 11,873.92 × 2,721.81
  4. Step 4: Simplify right side
    7,915.94x = 32,318,554.20
  5. Step 5: Solve for x
    x = 32,318,554.20/7,915.94
  6. Step 6: Final answer
    x = 4,082.72

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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.