Home / 12,006.05-18,005.23-3,999.10

Finding the Fourth Proportional to 12,006.05, 18,005.23 and 3,999.10

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Solution

The fourth proportional to 12,006.05, 18,005.23 and 3,999.10 is: 5,997.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,006.05 : 18,005.23 = 3,999.10 : x
  2. Step 2: Convert to fraction form
    12,006.05/18,005.23 = 3,999.10/x
  3. Step 3: Cross multiply
    12,006.05x = 18,005.23 × 3,999.10
  4. Step 4: Simplify right side
    12,006.05x = 72,004,695.30
  5. Step 5: Solve for x
    x = 72,004,695.30/12,006.05
  6. Step 6: Final answer
    x = 5,997.37

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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.