Home / 13,413.72-18,508.97-7,445.44

Finding the Fourth Proportional to 13,413.72, 18,508.97 and 7,445.44

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Solution

The fourth proportional to 13,413.72, 18,508.97 and 7,445.44 is: 10,273.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,413.72 : 18,508.97 = 7,445.44 : x
  2. Step 2: Convert to fraction form
    13,413.72/18,508.97 = 7,445.44/x
  3. Step 3: Cross multiply
    13,413.72x = 18,508.97 × 7,445.44
  4. Step 4: Simplify right side
    13,413.72x = 137,807,425.60
  5. Step 5: Solve for x
    x = 137,807,425.60/13,413.72
  6. Step 6: Final answer
    x = 10,273.62

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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.