Home / 11,915.72-17,873.58-4,124.54

Finding the Fourth Proportional to 11,915.72, 17,873.58 and 4,124.54

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Solution

The fourth proportional to 11,915.72, 17,873.58 and 4,124.54 is: 6,186.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,915.72 : 17,873.58 = 4,124.54 : x
  2. Step 2: Convert to fraction form
    11,915.72/17,873.58 = 4,124.54/x
  3. Step 3: Cross multiply
    11,915.72x = 17,873.58 × 4,124.54
  4. Step 4: Simplify right side
    11,915.72x = 73,720,206.29
  5. Step 5: Solve for x
    x = 73,720,206.29/11,915.72
  6. Step 6: Final answer
    x = 6,186.80

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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.