Home / 12,402.87-18,605.25-4,611.75

Finding the Fourth Proportional to 12,402.87, 18,605.25 and 4,611.75

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Solution

The fourth proportional to 12,402.87, 18,605.25 and 4,611.75 is: 6,917.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,402.87 : 18,605.25 = 4,611.75 : x
  2. Step 2: Convert to fraction form
    12,402.87/18,605.25 = 4,611.75/x
  3. Step 3: Cross multiply
    12,402.87x = 18,605.25 × 4,611.75
  4. Step 4: Simplify right side
    12,402.87x = 85,802,761.69
  5. Step 5: Solve for x
    x = 85,802,761.69/12,402.87
  6. Step 6: Final answer
    x = 6,917.98

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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.