Home / 17,130.48-25,694.80-5,442.78

Finding the Fourth Proportional to 17,130.48, 25,694.80 and 5,442.78

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Solution

The fourth proportional to 17,130.48, 25,694.80 and 5,442.78 is: 8,163.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,130.48 : 25,694.80 = 5,442.78 : x
  2. Step 2: Convert to fraction form
    17,130.48/25,694.80 = 5,442.78/x
  3. Step 3: Cross multiply
    17,130.48x = 25,694.80 × 5,442.78
  4. Step 4: Simplify right side
    17,130.48x = 139,851,143.54
  5. Step 5: Solve for x
    x = 139,851,143.54/17,130.48
  6. Step 6: Final answer
    x = 8,163.88

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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.