Home / 19,136.67-28,710.45-7,453.23

Finding the Fourth Proportional to 19,136.67, 28,710.45 and 7,453.23

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Solution

The fourth proportional to 19,136.67, 28,710.45 and 7,453.23 is: 11,181.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,136.67 : 28,710.45 = 7,453.23 : x
  2. Step 2: Convert to fraction form
    19,136.67/28,710.45 = 7,453.23/x
  3. Step 3: Cross multiply
    19,136.67x = 28,710.45 × 7,453.23
  4. Step 4: Simplify right side
    19,136.67x = 213,985,587.25
  5. Step 5: Solve for x
    x = 213,985,587.25/19,136.67
  6. Step 6: Final answer
    x = 11,181.97

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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.