Home / 11,915.28-17,874.12-4,124.04

Finding the Fourth Proportional to 11,915.28, 17,874.12 and 4,124.04

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Solution

The fourth proportional to 11,915.28, 17,874.12 and 4,124.04 is: 6,186.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,915.28 : 17,874.12 = 4,124.04 : x
  2. Step 2: Convert to fraction form
    11,915.28/17,874.12 = 4,124.04/x
  3. Step 3: Cross multiply
    11,915.28x = 17,874.12 × 4,124.04
  4. Step 4: Simplify right side
    11,915.28x = 73,713,585.84
  5. Step 5: Solve for x
    x = 73,713,585.84/11,915.28
  6. Step 6: Final answer
    x = 6,186.48

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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.