Home / 12,168.61-18,246.39-6,243.06

Finding the Fourth Proportional to 12,168.61, 18,246.39 and 6,243.06

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Solution

The fourth proportional to 12,168.61, 18,246.39 and 6,243.06 is: 9,361.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,168.61 : 18,246.39 = 6,243.06 : x
  2. Step 2: Convert to fraction form
    12,168.61/18,246.39 = 6,243.06/x
  3. Step 3: Cross multiply
    12,168.61x = 18,246.39 × 6,243.06
  4. Step 4: Simplify right side
    12,168.61x = 113,913,215.72
  5. Step 5: Solve for x
    x = 113,913,215.72/12,168.61
  6. Step 6: Final answer
    x = 9,361.23

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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.