Home / 18,396.20-25,385.96-10,438.25

Finding the Fourth Proportional to 18,396.20, 25,385.96 and 10,438.25

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Solution

The fourth proportional to 18,396.20, 25,385.96 and 10,438.25 is: 14,404.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,396.20 : 25,385.96 = 10,438.25 : x
  2. Step 2: Convert to fraction form
    18,396.20/25,385.96 = 10,438.25/x
  3. Step 3: Cross multiply
    18,396.20x = 25,385.96 × 10,438.25
  4. Step 4: Simplify right side
    18,396.20x = 264,984,817.85
  5. Step 5: Solve for x
    x = 264,984,817.85/18,396.20
  6. Step 6: Final answer
    x = 14,404.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.