Home / 13,746.94-20,620.42-4,981.86

Finding the Fourth Proportional to 13,746.94, 20,620.42 and 4,981.86

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Solution

The fourth proportional to 13,746.94, 20,620.42 and 4,981.86 is: 7,472.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,746.94 : 20,620.42 = 4,981.86 : x
  2. Step 2: Convert to fraction form
    13,746.94/20,620.42 = 4,981.86/x
  3. Step 3: Cross multiply
    13,746.94x = 20,620.42 × 4,981.86
  4. Step 4: Simplify right side
    13,746.94x = 102,728,033.13
  5. Step 5: Solve for x
    x = 102,728,033.13/13,746.94
  6. Step 6: Final answer
    x = 7,472.79

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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.