Home / 10,134.81-15,204.49-3,115.44

Finding the Fourth Proportional to 10,134.81, 15,204.49 and 3,115.44

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Solution

The fourth proportional to 10,134.81, 15,204.49 and 3,115.44 is: 4,673.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,134.81 : 15,204.49 = 3,115.44 : x
  2. Step 2: Convert to fraction form
    10,134.81/15,204.49 = 3,115.44/x
  3. Step 3: Cross multiply
    10,134.81x = 15,204.49 × 3,115.44
  4. Step 4: Simplify right side
    10,134.81x = 47,368,668.54
  5. Step 5: Solve for x
    x = 47,368,668.54/10,134.81
  6. Step 6: Final answer
    x = 4,673.86

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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.