Home / 7,915.33-11,876.18-2,986.36

Finding the Fourth Proportional to 7,915.33, 11,876.18 and 2,986.36

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Solution

The fourth proportional to 7,915.33, 11,876.18 and 2,986.36 is: 4,480.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,915.33 : 11,876.18 = 2,986.36 : x
  2. Step 2: Convert to fraction form
    7,915.33/11,876.18 = 2,986.36/x
  3. Step 3: Cross multiply
    7,915.33x = 11,876.18 × 2,986.36
  4. Step 4: Simplify right side
    7,915.33x = 35,466,548.90
  5. Step 5: Solve for x
    x = 35,466,548.90/7,915.33
  6. Step 6: Final answer
    x = 4,480.74

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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.