Home / 12,577.25-18,865.85-3,217.28

Finding the Fourth Proportional to 12,577.25, 18,865.85 and 3,217.28

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Solution

The fourth proportional to 12,577.25, 18,865.85 and 3,217.28 is: 4,825.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,577.25 : 18,865.85 = 3,217.28 : x
  2. Step 2: Convert to fraction form
    12,577.25/18,865.85 = 3,217.28/x
  3. Step 3: Cross multiply
    12,577.25x = 18,865.85 × 3,217.28
  4. Step 4: Simplify right side
    12,577.25x = 60,696,611.47
  5. Step 5: Solve for x
    x = 60,696,611.47/12,577.25
  6. Step 6: Final answer
    x = 4,825.91

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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.