Home / 10,115.07-15,173.51-2,719.36

Finding the Fourth Proportional to 10,115.07, 15,173.51 and 2,719.36

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Solution

The fourth proportional to 10,115.07, 15,173.51 and 2,719.36 is: 4,079.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,115.07 : 15,173.51 = 2,719.36 : x
  2. Step 2: Convert to fraction form
    10,115.07/15,173.51 = 2,719.36/x
  3. Step 3: Cross multiply
    10,115.07x = 15,173.51 × 2,719.36
  4. Step 4: Simplify right side
    10,115.07x = 41,262,241.52
  5. Step 5: Solve for x
    x = 41,262,241.52/10,115.07
  6. Step 6: Final answer
    x = 4,079.29

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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.