Home / 12,208.61-18,310.86-3,441.47

Finding the Fourth Proportional to 12,208.61, 18,310.86 and 3,441.47

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Solution

The fourth proportional to 12,208.61, 18,310.86 and 3,441.47 is: 5,161.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,208.61 : 18,310.86 = 3,441.47 : x
  2. Step 2: Convert to fraction form
    12,208.61/18,310.86 = 3,441.47/x
  3. Step 3: Cross multiply
    12,208.61x = 18,310.86 × 3,441.47
  4. Step 4: Simplify right side
    12,208.61x = 63,016,183.81
  5. Step 5: Solve for x
    x = 63,016,183.81/12,208.61
  6. Step 6: Final answer
    x = 5,161.62

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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.