Home / 12,717.39-19,077.32-3,949.95

Finding the Fourth Proportional to 12,717.39, 19,077.32 and 3,949.95

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Solution

The fourth proportional to 12,717.39, 19,077.32 and 3,949.95 is: 5,925.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,717.39 : 19,077.32 = 3,949.95 : x
  2. Step 2: Convert to fraction form
    12,717.39/19,077.32 = 3,949.95/x
  3. Step 3: Cross multiply
    12,717.39x = 19,077.32 × 3,949.95
  4. Step 4: Simplify right side
    12,717.39x = 75,354,460.13
  5. Step 5: Solve for x
    x = 75,354,460.13/12,717.39
  6. Step 6: Final answer
    x = 5,925.31

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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.