Home / 17,147.40-25,723-5,457.88

Finding the Fourth Proportional to 17,147.40, 25,723 and 5,457.88

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Solution

The fourth proportional to 17,147.40, 25,723 and 5,457.88 is: 8,187.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,147.40 : 25,723 = 5,457.88 : x
  2. Step 2: Convert to fraction form
    17,147.40/25,723 = 5,457.88/x
  3. Step 3: Cross multiply
    17,147.40x = 25,723 × 5,457.88
  4. Step 4: Simplify right side
    17,147.40x = 140,393,047.24
  5. Step 5: Solve for x
    x = 140,393,047.24/17,147.40
  6. Step 6: Final answer
    x = 8,187.42

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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.