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Finding the Fourth Proportional to 17,324.98, 25,987.87 and 5,639.11

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Solution

The fourth proportional to 17,324.98, 25,987.87 and 5,639.11 is: 8,458.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,324.98 : 25,987.87 = 5,639.11 : x
  2. Step 2: Convert to fraction form
    17,324.98/25,987.87 = 5,639.11/x
  3. Step 3: Cross multiply
    17,324.98x = 25,987.87 × 5,639.11
  4. Step 4: Simplify right side
    17,324.98x = 146,548,399.67
  5. Step 5: Solve for x
    x = 146,548,399.67/17,324.98
  6. Step 6: Final answer
    x = 8,458.79

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1.5x scale

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.