Home / 13,973.10-20,922.66-7,379.28

Finding the Fourth Proportional to 13,973.10, 20,922.66 and 7,379.28

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Solution

The fourth proportional to 13,973.10, 20,922.66 and 7,379.28 is: 11,049.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,973.10 : 20,922.66 = 7,379.28 : x
  2. Step 2: Convert to fraction form
    13,973.10/20,922.66 = 7,379.28/x
  3. Step 3: Cross multiply
    13,973.10x = 20,922.66 × 7,379.28
  4. Step 4: Simplify right side
    13,973.10x = 154,394,166.48
  5. Step 5: Solve for x
    x = 154,394,166.48/13,973.10
  6. Step 6: Final answer
    x = 11,049.39

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1.5x scale

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.