Home / 12,899.06-19,351.44-4,134.86

Finding the Fourth Proportional to 12,899.06, 19,351.44 and 4,134.86

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Solution

The fourth proportional to 12,899.06, 19,351.44 and 4,134.86 is: 6,203.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,899.06 : 19,351.44 = 4,134.86 : x
  2. Step 2: Convert to fraction form
    12,899.06/19,351.44 = 4,134.86/x
  3. Step 3: Cross multiply
    12,899.06x = 19,351.44 × 4,134.86
  4. Step 4: Simplify right side
    12,899.06x = 80,015,495.20
  5. Step 5: Solve for x
    x = 80,015,495.20/12,899.06
  6. Step 6: Final answer
    x = 6,203.20

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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.