Home / 17,178.20-25,748.10-9,786.20

Finding the Fourth Proportional to 17,178.20, 25,748.10 and 9,786.20

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Solution

The fourth proportional to 17,178.20, 25,748.10 and 9,786.20 is: 14,668.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,178.20 : 25,748.10 = 9,786.20 : x
  2. Step 2: Convert to fraction form
    17,178.20/25,748.10 = 9,786.20/x
  3. Step 3: Cross multiply
    17,178.20x = 25,748.10 × 9,786.20
  4. Step 4: Simplify right side
    17,178.20x = 251,976,056.22
  5. Step 5: Solve for x
    x = 251,976,056.22/17,178.20
  6. Step 6: Final answer
    x = 14,668.36

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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.