Home / 12,242.22-18,364.55-3,920.15

Finding the Fourth Proportional to 12,242.22, 18,364.55 and 3,920.15

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Solution

The fourth proportional to 12,242.22, 18,364.55 and 3,920.15 is: 5,880.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,242.22 : 18,364.55 = 3,920.15 : x
  2. Step 2: Convert to fraction form
    12,242.22/18,364.55 = 3,920.15/x
  3. Step 3: Cross multiply
    12,242.22x = 18,364.55 × 3,920.15
  4. Step 4: Simplify right side
    12,242.22x = 71,991,679.26
  5. Step 5: Solve for x
    x = 71,991,679.26/12,242.22
  6. Step 6: Final answer
    x = 5,880.61

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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.