Home / 12,717.92-19,079.32-3,952.50

Finding the Fourth Proportional to 12,717.92, 19,079.32 and 3,952.50

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Solution

The fourth proportional to 12,717.92, 19,079.32 and 3,952.50 is: 5,929.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,717.92 : 19,079.32 = 3,952.50 : x
  2. Step 2: Convert to fraction form
    12,717.92/19,079.32 = 3,952.50/x
  3. Step 3: Cross multiply
    12,717.92x = 19,079.32 × 3,952.50
  4. Step 4: Simplify right side
    12,717.92x = 75,411,012.30
  5. Step 5: Solve for x
    x = 75,411,012.30/12,717.92
  6. Step 6: Final answer
    x = 5,929.51

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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.