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Finding the Fourth Proportional to 16,486.31, 22,751.52 and 9,413.39

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Solution

The fourth proportional to 16,486.31, 22,751.52 and 9,413.39 is: 12,990.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,486.31 : 22,751.52 = 9,413.39 : x
  2. Step 2: Convert to fraction form
    16,486.31/22,751.52 = 9,413.39/x
  3. Step 3: Cross multiply
    16,486.31x = 22,751.52 × 9,413.39
  4. Step 4: Simplify right side
    16,486.31x = 214,168,930.85
  5. Step 5: Solve for x
    x = 214,168,930.85/16,486.31
  6. Step 6: Final answer
    x = 12,990.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.