Home / 8,187.29-12,272.19-4,669.72

Finding the Fourth Proportional to 8,187.29, 12,272.19 and 4,669.72

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Solution

The fourth proportional to 8,187.29, 12,272.19 and 4,669.72 is: 6,999.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,187.29 : 12,272.19 = 4,669.72 : x
  2. Step 2: Convert to fraction form
    8,187.29/12,272.19 = 4,669.72/x
  3. Step 3: Cross multiply
    8,187.29x = 12,272.19 × 4,669.72
  4. Step 4: Simplify right side
    8,187.29x = 57,307,691.09
  5. Step 5: Solve for x
    x = 57,307,691.09/8,187.29
  6. Step 6: Final answer
    x = 6,999.59

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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.