Home / 12,943.21-19,447.62-8,265.46

Finding the Fourth Proportional to 12,943.21, 19,447.62 and 8,265.46

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Solution

The fourth proportional to 12,943.21, 19,447.62 and 8,265.46 is: 12,419.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,943.21 : 19,447.62 = 8,265.46 : x
  2. Step 2: Convert to fraction form
    12,943.21/19,447.62 = 8,265.46/x
  3. Step 3: Cross multiply
    12,943.21x = 19,447.62 × 8,265.46
  4. Step 4: Simplify right side
    12,943.21x = 160,743,525.21
  5. Step 5: Solve for x
    x = 160,743,525.21/12,943.21
  6. Step 6: Final answer
    x = 12,419.14

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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.