Home / 13,612.94-20,422.32-4,728.55

Finding the Fourth Proportional to 13,612.94, 20,422.32 and 4,728.55

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Solution

The fourth proportional to 13,612.94, 20,422.32 and 4,728.55 is: 7,093.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,612.94 : 20,422.32 = 4,728.55 : x
  2. Step 2: Convert to fraction form
    13,612.94/20,422.32 = 4,728.55/x
  3. Step 3: Cross multiply
    13,612.94x = 20,422.32 × 4,728.55
  4. Step 4: Simplify right side
    13,612.94x = 96,567,910.18
  5. Step 5: Solve for x
    x = 96,567,910.18/13,612.94
  6. Step 6: Final answer
    x = 7,093.83

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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.