Home / 12,689.06-19,034.21-3,329.09

Finding the Fourth Proportional to 12,689.06, 19,034.21 and 3,329.09

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Solution

The fourth proportional to 12,689.06, 19,034.21 and 3,329.09 is: 4,993.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,689.06 : 19,034.21 = 3,329.09 : x
  2. Step 2: Convert to fraction form
    12,689.06/19,034.21 = 3,329.09/x
  3. Step 3: Cross multiply
    12,689.06x = 19,034.21 × 3,329.09
  4. Step 4: Simplify right side
    12,689.06x = 63,366,671.04
  5. Step 5: Solve for x
    x = 63,366,671.04/12,689.06
  6. Step 6: Final answer
    x = 4,993.81

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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.