Home / 15,791.25-23,690.52-5,403

Finding the Fourth Proportional to 15,791.25, 23,690.52 and 5,403

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Solution

The fourth proportional to 15,791.25, 23,690.52 and 5,403 is: 8,105.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,791.25 : 23,690.52 = 5,403 : x
  2. Step 2: Convert to fraction form
    15,791.25/23,690.52 = 5,403/x
  3. Step 3: Cross multiply
    15,791.25x = 23,690.52 × 5,403
  4. Step 4: Simplify right side
    15,791.25x = 127,999,879.56
  5. Step 5: Solve for x
    x = 127,999,879.56/15,791.25
  6. Step 6: Final answer
    x = 8,105.75

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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.