Home / 11,243.57-15,515.91-6,207.95

Finding the Fourth Proportional to 11,243.57, 15,515.91 and 6,207.95

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Solution

The fourth proportional to 11,243.57, 15,515.91 and 6,207.95 is: 8,566.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,243.57 : 15,515.91 = 6,207.95 : x
  2. Step 2: Convert to fraction form
    11,243.57/15,515.91 = 6,207.95/x
  3. Step 3: Cross multiply
    11,243.57x = 15,515.91 × 6,207.95
  4. Step 4: Simplify right side
    11,243.57x = 96,321,915.90
  5. Step 5: Solve for x
    x = 96,321,915.90/11,243.57
  6. Step 6: Final answer
    x = 8,566.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.