Home / 12,634.20-18,943.20-5,241.60

Finding the Fourth Proportional to 12,634.20, 18,943.20 and 5,241.60

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Solution

The fourth proportional to 12,634.20, 18,943.20 and 5,241.60 is: 7,859.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,634.20 : 18,943.20 = 5,241.60 : x
  2. Step 2: Convert to fraction form
    12,634.20/18,943.20 = 5,241.60/x
  3. Step 3: Cross multiply
    12,634.20x = 18,943.20 × 5,241.60
  4. Step 4: Simplify right side
    12,634.20x = 99,292,677.12
  5. Step 5: Solve for x
    x = 99,292,677.12/12,634.20
  6. Step 6: Final answer
    x = 7,859.04

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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.