Home / 13,774.73-20,655.94-3,911.70

Finding the Fourth Proportional to 13,774.73, 20,655.94 and 3,911.70

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Solution

The fourth proportional to 13,774.73, 20,655.94 and 3,911.70 is: 5,865.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,774.73 : 20,655.94 = 3,911.70 : x
  2. Step 2: Convert to fraction form
    13,774.73/20,655.94 = 3,911.70/x
  3. Step 3: Cross multiply
    13,774.73x = 20,655.94 × 3,911.70
  4. Step 4: Simplify right side
    13,774.73x = 80,799,840.50
  5. Step 5: Solve for x
    x = 80,799,840.50/13,774.73
  6. Step 6: Final answer
    x = 5,865.80

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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.