Home / 17,136.33-25,655.25-12,663.91

Finding the Fourth Proportional to 17,136.33, 25,655.25 and 12,663.91

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Solution

The fourth proportional to 17,136.33, 25,655.25 and 12,663.91 is: 18,959.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,136.33 : 25,655.25 = 12,663.91 : x
  2. Step 2: Convert to fraction form
    17,136.33/25,655.25 = 12,663.91/x
  3. Step 3: Cross multiply
    17,136.33x = 25,655.25 × 12,663.91
  4. Step 4: Simplify right side
    17,136.33x = 324,895,777.03
  5. Step 5: Solve for x
    x = 324,895,777.03/17,136.33
  6. Step 6: Final answer
    x = 18,959.47

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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.