Home / 11,615.61-17,435.70-7,236.15

Finding the Fourth Proportional to 11,615.61, 17,435.70 and 7,236.15

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Solution

The fourth proportional to 11,615.61, 17,435.70 and 7,236.15 is: 10,861.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,615.61 : 17,435.70 = 7,236.15 : x
  2. Step 2: Convert to fraction form
    11,615.61/17,435.70 = 7,236.15/x
  3. Step 3: Cross multiply
    11,615.61x = 17,435.70 × 7,236.15
  4. Step 4: Simplify right side
    11,615.61x = 126,167,340.56
  5. Step 5: Solve for x
    x = 126,167,340.56/11,615.61
  6. Step 6: Final answer
    x = 10,861.88

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1.5x scale

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.