Home / 13,774.17-20,653.03-5,455.38

Finding the Fourth Proportional to 13,774.17, 20,653.03 and 5,455.38

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Solution

The fourth proportional to 13,774.17, 20,653.03 and 5,455.38 is: 8,179.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,774.17 : 20,653.03 = 5,455.38 : x
  2. Step 2: Convert to fraction form
    13,774.17/20,653.03 = 5,455.38/x
  3. Step 3: Cross multiply
    13,774.17x = 20,653.03 × 5,455.38
  4. Step 4: Simplify right side
    13,774.17x = 112,670,126.80
  5. Step 5: Solve for x
    x = 112,670,126.80/13,774.17
  6. Step 6: Final answer
    x = 8,179.81

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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.