Home / 13,396.74-20,103.66-9,445.56

Finding the Fourth Proportional to 13,396.74, 20,103.66 and 9,445.56

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Solution

The fourth proportional to 13,396.74, 20,103.66 and 9,445.56 is: 14,174.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,396.74 : 20,103.66 = 9,445.56 : x
  2. Step 2: Convert to fraction form
    13,396.74/20,103.66 = 9,445.56/x
  3. Step 3: Cross multiply
    13,396.74x = 20,103.66 × 9,445.56
  4. Step 4: Simplify right side
    13,396.74x = 189,890,326.75
  5. Step 5: Solve for x
    x = 189,890,326.75/13,396.74
  6. Step 6: Final answer
    x = 14,174.37

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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.