Home / 13,241.07-19,861.47-3,380.21

Finding the Fourth Proportional to 13,241.07, 19,861.47 and 3,380.21

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Solution

The fourth proportional to 13,241.07, 19,861.47 and 3,380.21 is: 5,070.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,241.07 : 19,861.47 = 3,380.21 : x
  2. Step 2: Convert to fraction form
    13,241.07/19,861.47 = 3,380.21/x
  3. Step 3: Cross multiply
    13,241.07x = 19,861.47 × 3,380.21
  4. Step 4: Simplify right side
    13,241.07x = 67,135,840.20
  5. Step 5: Solve for x
    x = 67,135,840.20/13,241.07
  6. Step 6: Final answer
    x = 5,070.27

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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.