Home / 12,104.47-18,157.22-3,784.64

Finding the Fourth Proportional to 12,104.47, 18,157.22 and 3,784.64

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Solution

The fourth proportional to 12,104.47, 18,157.22 and 3,784.64 is: 5,677.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,104.47 : 18,157.22 = 3,784.64 : x
  2. Step 2: Convert to fraction form
    12,104.47/18,157.22 = 3,784.64/x
  3. Step 3: Cross multiply
    12,104.47x = 18,157.22 × 3,784.64
  4. Step 4: Simplify right side
    12,104.47x = 68,718,499.48
  5. Step 5: Solve for x
    x = 68,718,499.48/12,104.47
  6. Step 6: Final answer
    x = 5,677.12

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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.