Home / 12,582.78-18,861.21-6,737.82

Finding the Fourth Proportional to 12,582.78, 18,861.21 and 6,737.82

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Solution

The fourth proportional to 12,582.78, 18,861.21 and 6,737.82 is: 10,099.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,582.78 : 18,861.21 = 6,737.82 : x
  2. Step 2: Convert to fraction form
    12,582.78/18,861.21 = 6,737.82/x
  3. Step 3: Cross multiply
    12,582.78x = 18,861.21 × 6,737.82
  4. Step 4: Simplify right side
    12,582.78x = 127,083,437.96
  5. Step 5: Solve for x
    x = 127,083,437.96/12,582.78
  6. Step 6: Final answer
    x = 10,099.79

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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.