Home / 12,933-19,402.20-4,168.80

Finding the Fourth Proportional to 12,933, 19,402.20 and 4,168.80

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Solution

The fourth proportional to 12,933, 19,402.20 and 4,168.80 is: 6,254.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,933 : 19,402.20 = 4,168.80 : x
  2. Step 2: Convert to fraction form
    12,933/19,402.20 = 4,168.80/x
  3. Step 3: Cross multiply
    12,933x = 19,402.20 × 4,168.80
  4. Step 4: Simplify right side
    12,933x = 80,883,891.36
  5. Step 5: Solve for x
    x = 80,883,891.36/12,933
  6. Step 6: Final answer
    x = 6,254.07

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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.