Home / 15,127.92-20,876.32-8,413.52

Finding the Fourth Proportional to 15,127.92, 20,876.32 and 8,413.52

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Solution

The fourth proportional to 15,127.92, 20,876.32 and 8,413.52 is: 11,610.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,127.92 : 20,876.32 = 8,413.52 : x
  2. Step 2: Convert to fraction form
    15,127.92/20,876.32 = 8,413.52/x
  3. Step 3: Cross multiply
    15,127.92x = 20,876.32 × 8,413.52
  4. Step 4: Simplify right side
    15,127.92x = 175,643,335.85
  5. Step 5: Solve for x
    x = 175,643,335.85/15,127.92
  6. Step 6: Final answer
    x = 11,610.54

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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.