Home / 12,577.40-18,865.90-3,217.33

Finding the Fourth Proportional to 12,577.40, 18,865.90 and 3,217.33

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Solution

The fourth proportional to 12,577.40, 18,865.90 and 3,217.33 is: 4,825.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,577.40 : 18,865.90 = 3,217.33 : x
  2. Step 2: Convert to fraction form
    12,577.40/18,865.90 = 3,217.33/x
  3. Step 3: Cross multiply
    12,577.40x = 18,865.90 × 3,217.33
  4. Step 4: Simplify right side
    12,577.40x = 60,697,770.84
  5. Step 5: Solve for x
    x = 60,697,770.84/12,577.40
  6. Step 6: Final answer
    x = 4,825.94

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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.