Home / 7,915.29-11,862.44-4,209.54

Finding the Fourth Proportional to 7,915.29, 11,862.44 and 4,209.54

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Solution

The fourth proportional to 7,915.29, 11,862.44 and 4,209.54 is: 6,308.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,915.29 : 11,862.44 = 4,209.54 : x
  2. Step 2: Convert to fraction form
    7,915.29/11,862.44 = 4,209.54/x
  3. Step 3: Cross multiply
    7,915.29x = 11,862.44 × 4,209.54
  4. Step 4: Simplify right side
    7,915.29x = 49,935,415.68
  5. Step 5: Solve for x
    x = 49,935,415.68/7,915.29
  6. Step 6: Final answer
    x = 6,308.73

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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.