Home / 10,115.90-15,175.68-3,095.79

Finding the Fourth Proportional to 10,115.90, 15,175.68 and 3,095.79

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Solution

The fourth proportional to 10,115.90, 15,175.68 and 3,095.79 is: 4,644.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,115.90 : 15,175.68 = 3,095.79 : x
  2. Step 2: Convert to fraction form
    10,115.90/15,175.68 = 3,095.79/x
  3. Step 3: Cross multiply
    10,115.90x = 15,175.68 × 3,095.79
  4. Step 4: Simplify right side
    10,115.90x = 46,980,649.87
  5. Step 5: Solve for x
    x = 46,980,649.87/10,115.90
  6. Step 6: Final answer
    x = 4,644.24

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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.