Home / 10,115.57-15,174.26-2,719.86

Finding the Fourth Proportional to 10,115.57, 15,174.26 and 2,719.86

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Solution

The fourth proportional to 10,115.57, 15,174.26 and 2,719.86 is: 4,080.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,115.57 : 15,174.26 = 2,719.86 : x
  2. Step 2: Convert to fraction form
    10,115.57/15,174.26 = 2,719.86/x
  3. Step 3: Cross multiply
    10,115.57x = 15,174.26 × 2,719.86
  4. Step 4: Simplify right side
    10,115.57x = 41,271,887.14
  5. Step 5: Solve for x
    x = 41,271,887.14/10,115.57
  6. Step 6: Final answer
    x = 4,080.04

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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.