Home / 19,175.13-28,760.68-5,136.60

Finding the Fourth Proportional to 19,175.13, 28,760.68 and 5,136.60

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Solution

The fourth proportional to 19,175.13, 28,760.68 and 5,136.60 is: 7,704.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,175.13 : 28,760.68 = 5,136.60 : x
  2. Step 2: Convert to fraction form
    19,175.13/28,760.68 = 5,136.60/x
  3. Step 3: Cross multiply
    19,175.13x = 28,760.68 × 5,136.60
  4. Step 4: Simplify right side
    19,175.13x = 147,732,108.89
  5. Step 5: Solve for x
    x = 147,732,108.89/19,175.13
  6. Step 6: Final answer
    x = 7,704.36

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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.