Home / 12,170.86-18,250.31-4,273.16

Finding the Fourth Proportional to 12,170.86, 18,250.31 and 4,273.16

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Solution

The fourth proportional to 12,170.86, 18,250.31 and 4,273.16 is: 6,407.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,170.86 : 18,250.31 = 4,273.16 : x
  2. Step 2: Convert to fraction form
    12,170.86/18,250.31 = 4,273.16/x
  3. Step 3: Cross multiply
    12,170.86x = 18,250.31 × 4,273.16
  4. Step 4: Simplify right side
    12,170.86x = 77,986,414.11
  5. Step 5: Solve for x
    x = 77,986,414.11/12,170.86
  6. Step 6: Final answer
    x = 6,407.64

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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.