Home / 13,911.75-20,868.92-4,551.82

Finding the Fourth Proportional to 13,911.75, 20,868.92 and 4,551.82

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Solution

The fourth proportional to 13,911.75, 20,868.92 and 4,551.82 is: 6,828.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,911.75 : 20,868.92 = 4,551.82 : x
  2. Step 2: Convert to fraction form
    13,911.75/20,868.92 = 4,551.82/x
  3. Step 3: Cross multiply
    13,911.75x = 20,868.92 × 4,551.82
  4. Step 4: Simplify right side
    13,911.75x = 94,991,567.43
  5. Step 5: Solve for x
    x = 94,991,567.43/13,911.75
  6. Step 6: Final answer
    x = 6,828.15

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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.