Home / 12,269.49-18,403.62-3,949.92

Finding the Fourth Proportional to 12,269.49, 18,403.62 and 3,949.92

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Solution

The fourth proportional to 12,269.49, 18,403.62 and 3,949.92 is: 5,924.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,269.49 : 18,403.62 = 3,949.92 : x
  2. Step 2: Convert to fraction form
    12,269.49/18,403.62 = 3,949.92/x
  3. Step 3: Cross multiply
    12,269.49x = 18,403.62 × 3,949.92
  4. Step 4: Simplify right side
    12,269.49x = 72,692,826.71
  5. Step 5: Solve for x
    x = 72,692,826.71/12,269.49
  6. Step 6: Final answer
    x = 5,924.68

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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.