Home / 19,101.22-28,658.52-7,422.64

Finding the Fourth Proportional to 19,101.22, 28,658.52 and 7,422.64

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Solution

The fourth proportional to 19,101.22, 28,658.52 and 7,422.64 is: 11,136.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,101.22 : 28,658.52 = 7,422.64 : x
  2. Step 2: Convert to fraction form
    19,101.22/28,658.52 = 7,422.64/x
  3. Step 3: Cross multiply
    19,101.22x = 28,658.52 × 7,422.64
  4. Step 4: Simplify right side
    19,101.22x = 212,721,805.25
  5. Step 5: Solve for x
    x = 212,721,805.25/19,101.22
  6. Step 6: Final answer
    x = 11,136.56

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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.