Home / 13,354.75-20,032.40-4,120.75

Finding the Fourth Proportional to 13,354.75, 20,032.40 and 4,120.75

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Solution

The fourth proportional to 13,354.75, 20,032.40 and 4,120.75 is: 6,181.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,354.75 : 20,032.40 = 4,120.75 : x
  2. Step 2: Convert to fraction form
    13,354.75/20,032.40 = 4,120.75/x
  3. Step 3: Cross multiply
    13,354.75x = 20,032.40 × 4,120.75
  4. Step 4: Simplify right side
    13,354.75x = 82,548,512.30
  5. Step 5: Solve for x
    x = 82,548,512.30/13,354.75
  6. Step 6: Final answer
    x = 6,181.21

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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.