Home / 17,129.72-25,688.10-7,273.64

Finding the Fourth Proportional to 17,129.72, 25,688.10 and 7,273.64

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Solution

The fourth proportional to 17,129.72, 25,688.10 and 7,273.64 is: 10,907.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,129.72 : 25,688.10 = 7,273.64 : x
  2. Step 2: Convert to fraction form
    17,129.72/25,688.10 = 7,273.64/x
  3. Step 3: Cross multiply
    17,129.72x = 25,688.10 × 7,273.64
  4. Step 4: Simplify right side
    17,129.72x = 186,845,991.68
  5. Step 5: Solve for x
    x = 186,845,991.68/17,129.72
  6. Step 6: Final answer
    x = 10,907.71

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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.