Home / 18,519.50-25,556.91-10,136

Finding the Fourth Proportional to 18,519.50, 25,556.91 and 10,136

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Solution

The fourth proportional to 18,519.50, 25,556.91 and 10,136 is: 13,987.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,519.50 : 25,556.91 = 10,136 : x
  2. Step 2: Convert to fraction form
    18,519.50/25,556.91 = 10,136/x
  3. Step 3: Cross multiply
    18,519.50x = 25,556.91 × 10,136
  4. Step 4: Simplify right side
    18,519.50x = 259,044,839.76
  5. Step 5: Solve for x
    x = 259,044,839.76/18,519.50
  6. Step 6: Final answer
    x = 13,987.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.