Home / 12,716.91-19,077.35-3,949.74

Finding the Fourth Proportional to 12,716.91, 19,077.35 and 3,949.74

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Solution

The fourth proportional to 12,716.91, 19,077.35 and 3,949.74 is: 5,925.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,716.91 : 19,077.35 = 3,949.74 : x
  2. Step 2: Convert to fraction form
    12,716.91/19,077.35 = 3,949.74/x
  3. Step 3: Cross multiply
    12,716.91x = 19,077.35 × 3,949.74
  4. Step 4: Simplify right side
    12,716.91x = 75,350,552.64
  5. Step 5: Solve for x
    x = 75,350,552.64/12,716.91
  6. Step 6: Final answer
    x = 5,925.22

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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.