Home / 10,861.38-16,287.21-7,576.02

Finding the Fourth Proportional to 10,861.38, 16,287.21 and 7,576.02

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Solution

The fourth proportional to 10,861.38, 16,287.21 and 7,576.02 is: 11,360.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,861.38 : 16,287.21 = 7,576.02 : x
  2. Step 2: Convert to fraction form
    10,861.38/16,287.21 = 7,576.02/x
  3. Step 3: Cross multiply
    10,861.38x = 16,287.21 × 7,576.02
  4. Step 4: Simplify right side
    10,861.38x = 123,392,228.70
  5. Step 5: Solve for x
    x = 123,392,228.70/10,861.38
  6. Step 6: Final answer
    x = 11,360.64

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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.