Home / 12,003.06-18,006.39-4,211.25

Finding the Fourth Proportional to 12,003.06, 18,006.39 and 4,211.25

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Solution

The fourth proportional to 12,003.06, 18,006.39 and 4,211.25 is: 6,317.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,003.06 : 18,006.39 = 4,211.25 : x
  2. Step 2: Convert to fraction form
    12,003.06/18,006.39 = 4,211.25/x
  3. Step 3: Cross multiply
    12,003.06x = 18,006.39 × 4,211.25
  4. Step 4: Simplify right side
    12,003.06x = 75,829,409.89
  5. Step 5: Solve for x
    x = 75,829,409.89/12,003.06
  6. Step 6: Final answer
    x = 6,317.51

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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.