Home / 17,421.25-26,135.60-5,413.15

Finding the Fourth Proportional to 17,421.25, 26,135.60 and 5,413.15

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Solution

The fourth proportional to 17,421.25, 26,135.60 and 5,413.15 is: 8,120.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,421.25 : 26,135.60 = 5,413.15 : x
  2. Step 2: Convert to fraction form
    17,421.25/26,135.60 = 5,413.15/x
  3. Step 3: Cross multiply
    17,421.25x = 26,135.60 × 5,413.15
  4. Step 4: Simplify right side
    17,421.25x = 141,475,765.40
  5. Step 5: Solve for x
    x = 141,475,765.40/17,421.25
  6. Step 6: Final answer
    x = 8,120.88

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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.