Home / 15,621.14-23,413.28-8,221.79

Finding the Fourth Proportional to 15,621.14, 23,413.28 and 8,221.79

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Solution

The fourth proportional to 15,621.14, 23,413.28 and 8,221.79 is: 12,322.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,621.14 : 23,413.28 = 8,221.79 : x
  2. Step 2: Convert to fraction form
    15,621.14/23,413.28 = 8,221.79/x
  3. Step 3: Cross multiply
    15,621.14x = 23,413.28 × 8,221.79
  4. Step 4: Simplify right side
    15,621.14x = 192,498,913.20
  5. Step 5: Solve for x
    x = 192,498,913.20/15,621.14
  6. Step 6: Final answer
    x = 12,322.98

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1.5x scale

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.