Home / 12,382.66-17,083.91-7,073.72

Finding the Fourth Proportional to 12,382.66, 17,083.91 and 7,073.72

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Solution

The fourth proportional to 12,382.66, 17,083.91 and 7,073.72 is: 9,759.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,382.66 : 17,083.91 = 7,073.72 : x
  2. Step 2: Convert to fraction form
    12,382.66/17,083.91 = 7,073.72/x
  3. Step 3: Cross multiply
    12,382.66x = 17,083.91 × 7,073.72
  4. Step 4: Simplify right side
    12,382.66x = 120,846,675.06
  5. Step 5: Solve for x
    x = 120,846,675.06/12,382.66
  6. Step 6: Final answer
    x = 9,759.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.