Home / 12,286.83-18,414.81-6,664.29

Finding the Fourth Proportional to 12,286.83, 18,414.81 and 6,664.29

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Solution

The fourth proportional to 12,286.83, 18,414.81 and 6,664.29 is: 9,988.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,286.83 : 18,414.81 = 6,664.29 : x
  2. Step 2: Convert to fraction form
    12,286.83/18,414.81 = 6,664.29/x
  3. Step 3: Cross multiply
    12,286.83x = 18,414.81 × 6,664.29
  4. Step 4: Simplify right side
    12,286.83x = 122,721,634.13
  5. Step 5: Solve for x
    x = 122,721,634.13/12,286.83
  6. Step 6: Final answer
    x = 9,988.06

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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.