Home / 12,006.43-18,012.17-4,108.32

Finding the Fourth Proportional to 12,006.43, 18,012.17 and 4,108.32

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Solution

The fourth proportional to 12,006.43, 18,012.17 and 4,108.32 is: 6,163.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,006.43 : 18,012.17 = 4,108.32 : x
  2. Step 2: Convert to fraction form
    12,006.43/18,012.17 = 4,108.32/x
  3. Step 3: Cross multiply
    12,006.43x = 18,012.17 × 4,108.32
  4. Step 4: Simplify right side
    12,006.43x = 73,999,768.53
  5. Step 5: Solve for x
    x = 73,999,768.53/12,006.43
  6. Step 6: Final answer
    x = 6,163.35

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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.