Home / 17,136.29-25,680.34-8,120.84

Finding the Fourth Proportional to 17,136.29, 25,680.34 and 8,120.84

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Solution

The fourth proportional to 17,136.29, 25,680.34 and 8,120.84 is: 12,169.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,136.29 : 25,680.34 = 8,120.84 : x
  2. Step 2: Convert to fraction form
    17,136.29/25,680.34 = 8,120.84/x
  3. Step 3: Cross multiply
    17,136.29x = 25,680.34 × 8,120.84
  4. Step 4: Simplify right side
    17,136.29x = 208,545,958.49
  5. Step 5: Solve for x
    x = 208,545,958.49/17,136.29
  6. Step 6: Final answer
    x = 12,169.84

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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.