Home / 11,339.10-15,648.21-6,861.96

Finding the Fourth Proportional to 11,339.10, 15,648.21 and 6,861.96

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Solution

The fourth proportional to 11,339.10, 15,648.21 and 6,861.96 is: 9,469.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,339.10 : 15,648.21 = 6,861.96 : x
  2. Step 2: Convert to fraction form
    11,339.10/15,648.21 = 6,861.96/x
  3. Step 3: Cross multiply
    11,339.10x = 15,648.21 × 6,861.96
  4. Step 4: Simplify right side
    11,339.10x = 107,377,391.09
  5. Step 5: Solve for x
    x = 107,377,391.09/11,339.10
  6. Step 6: Final answer
    x = 9,469.66

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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.