Home / 10,115.88-15,164.22-3,537.78

Finding the Fourth Proportional to 10,115.88, 15,164.22 and 3,537.78

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Solution

The fourth proportional to 10,115.88, 15,164.22 and 3,537.78 is: 5,303.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,115.88 : 15,164.22 = 3,537.78 : x
  2. Step 2: Convert to fraction form
    10,115.88/15,164.22 = 3,537.78/x
  3. Step 3: Cross multiply
    10,115.88x = 15,164.22 × 3,537.78
  4. Step 4: Simplify right side
    10,115.88x = 53,647,674.23
  5. Step 5: Solve for x
    x = 53,647,674.23/10,115.88
  6. Step 6: Final answer
    x = 5,303.31

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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.