Home / 13,241.57-19,862.08-3,380.63

Finding the Fourth Proportional to 13,241.57, 19,862.08 and 3,380.63

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Solution

The fourth proportional to 13,241.57, 19,862.08 and 3,380.63 is: 5,070.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,241.57 : 19,862.08 = 3,380.63 : x
  2. Step 2: Convert to fraction form
    13,241.57/19,862.08 = 3,380.63/x
  3. Step 3: Cross multiply
    13,241.57x = 19,862.08 × 3,380.63
  4. Step 4: Simplify right side
    13,241.57x = 67,146,235.75
  5. Step 5: Solve for x
    x = 67,146,235.75/13,241.57
  6. Step 6: Final answer
    x = 5,070.87

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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.