Home / 12,718.26-19,078.63-3,950.82

Finding the Fourth Proportional to 12,718.26, 19,078.63 and 3,950.82

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Solution

The fourth proportional to 12,718.26, 19,078.63 and 3,950.82 is: 5,926.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,718.26 : 19,078.63 = 3,950.82 : x
  2. Step 2: Convert to fraction form
    12,718.26/19,078.63 = 3,950.82/x
  3. Step 3: Cross multiply
    12,718.26x = 19,078.63 × 3,950.82
  4. Step 4: Simplify right side
    12,718.26x = 75,376,223.10
  5. Step 5: Solve for x
    x = 75,376,223.10/12,718.26
  6. Step 6: Final answer
    x = 5,926.61

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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.