Home / 11,310.75-15,609.60-6,342.75

Finding the Fourth Proportional to 11,310.75, 15,609.60 and 6,342.75

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Solution

The fourth proportional to 11,310.75, 15,609.60 and 6,342.75 is: 8,753.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,310.75 : 15,609.60 = 6,342.75 : x
  2. Step 2: Convert to fraction form
    11,310.75/15,609.60 = 6,342.75/x
  3. Step 3: Cross multiply
    11,310.75x = 15,609.60 × 6,342.75
  4. Step 4: Simplify right side
    11,310.75x = 99,007,790.40
  5. Step 5: Solve for x
    x = 99,007,790.40/11,310.75
  6. Step 6: Final answer
    x = 8,753.42

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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.