Home / 19,418.30-29,128.05-6,272

Finding the Fourth Proportional to 19,418.30, 29,128.05 and 6,272

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Solution

The fourth proportional to 19,418.30, 29,128.05 and 6,272 is: 9,408.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,418.30 : 29,128.05 = 6,272 : x
  2. Step 2: Convert to fraction form
    19,418.30/29,128.05 = 6,272/x
  3. Step 3: Cross multiply
    19,418.30x = 29,128.05 × 6,272
  4. Step 4: Simplify right side
    19,418.30x = 182,691,129.60
  5. Step 5: Solve for x
    x = 182,691,129.60/19,418.30
  6. Step 6: Final answer
    x = 9,408.19

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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.