Home / 10,137.09-15,207.58-3,115.85

Finding the Fourth Proportional to 10,137.09, 15,207.58 and 3,115.85

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Solution

The fourth proportional to 10,137.09, 15,207.58 and 3,115.85 is: 4,674.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,137.09 : 15,207.58 = 3,115.85 : x
  2. Step 2: Convert to fraction form
    10,137.09/15,207.58 = 3,115.85/x
  3. Step 3: Cross multiply
    10,137.09x = 15,207.58 × 3,115.85
  4. Step 4: Simplify right side
    10,137.09x = 47,384,538.14
  5. Step 5: Solve for x
    x = 47,384,538.14/10,137.09
  6. Step 6: Final answer
    x = 4,674.37

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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.