Home / 12,121.01-18,180.96-4,225.33

Finding the Fourth Proportional to 12,121.01, 18,180.96 and 4,225.33

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Solution

The fourth proportional to 12,121.01, 18,180.96 and 4,225.33 is: 6,337.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,121.01 : 18,180.96 = 4,225.33 : x
  2. Step 2: Convert to fraction form
    12,121.01/18,180.96 = 4,225.33/x
  3. Step 3: Cross multiply
    12,121.01x = 18,180.96 × 4,225.33
  4. Step 4: Simplify right side
    12,121.01x = 76,820,562.60
  5. Step 5: Solve for x
    x = 76,820,562.60/12,121.01
  6. Step 6: Final answer
    x = 6,337.80

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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.