Home / 12,206.68-18,309.84-4,413.58

Finding the Fourth Proportional to 12,206.68, 18,309.84 and 4,413.58

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Solution

The fourth proportional to 12,206.68, 18,309.84 and 4,413.58 is: 6,620.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,206.68 : 18,309.84 = 4,413.58 : x
  2. Step 2: Convert to fraction form
    12,206.68/18,309.84 = 4,413.58/x
  3. Step 3: Cross multiply
    12,206.68x = 18,309.84 × 4,413.58
  4. Step 4: Simplify right side
    12,206.68x = 80,811,943.63
  5. Step 5: Solve for x
    x = 80,811,943.63/12,206.68
  6. Step 6: Final answer
    x = 6,620.30

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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.