Home / 12,577.86-18,867.96-3,811.23

Finding the Fourth Proportional to 12,577.86, 18,867.96 and 3,811.23

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Solution

The fourth proportional to 12,577.86, 18,867.96 and 3,811.23 is: 5,717.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,577.86 : 18,867.96 = 3,811.23 : x
  2. Step 2: Convert to fraction form
    12,577.86/18,867.96 = 3,811.23/x
  3. Step 3: Cross multiply
    12,577.86x = 18,867.96 × 3,811.23
  4. Step 4: Simplify right side
    12,577.86x = 71,910,135.19
  5. Step 5: Solve for x
    x = 71,910,135.19/12,577.86
  6. Step 6: Final answer
    x = 5,717.20

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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.