Home / 12,001.37-18,001.44-4,209.57

Finding the Fourth Proportional to 12,001.37, 18,001.44 and 4,209.57

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Solution

The fourth proportional to 12,001.37, 18,001.44 and 4,209.57 is: 6,314.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,001.37 : 18,001.44 = 4,209.57 : x
  2. Step 2: Convert to fraction form
    12,001.37/18,001.44 = 4,209.57/x
  3. Step 3: Cross multiply
    12,001.37x = 18,001.44 × 4,209.57
  4. Step 4: Simplify right side
    12,001.37x = 75,778,321.78
  5. Step 5: Solve for x
    x = 75,778,321.78/12,001.37
  6. Step 6: Final answer
    x = 6,314.14

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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.