Home / 12,859.06-19,288.36-4,093.87

Finding the Fourth Proportional to 12,859.06, 19,288.36 and 4,093.87

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Solution

The fourth proportional to 12,859.06, 19,288.36 and 4,093.87 is: 6,140.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,859.06 : 19,288.36 = 4,093.87 : x
  2. Step 2: Convert to fraction form
    12,859.06/19,288.36 = 4,093.87/x
  3. Step 3: Cross multiply
    12,859.06x = 19,288.36 × 4,093.87
  4. Step 4: Simplify right side
    12,859.06x = 78,964,038.35
  5. Step 5: Solve for x
    x = 78,964,038.35/12,859.06
  6. Step 6: Final answer
    x = 6,140.73

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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.