Home / 12,689.11-19,033.23-3,329.05

Finding the Fourth Proportional to 12,689.11, 19,033.23 and 3,329.05

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Solution

The fourth proportional to 12,689.11, 19,033.23 and 3,329.05 is: 4,993.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,689.11 : 19,033.23 = 3,329.05 : x
  2. Step 2: Convert to fraction form
    12,689.11/19,033.23 = 3,329.05/x
  3. Step 3: Cross multiply
    12,689.11x = 19,033.23 × 3,329.05
  4. Step 4: Simplify right side
    12,689.11x = 63,362,574.33
  5. Step 5: Solve for x
    x = 63,362,574.33/12,689.11
  6. Step 6: Final answer
    x = 4,993.46

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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.