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Finding the Fourth Proportional to 13,874.58, 20,800.94 and 5,104.71

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Solution

The fourth proportional to 13,874.58, 20,800.94 and 5,104.71 is: 7,653.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,874.58 : 20,800.94 = 5,104.71 : x
  2. Step 2: Convert to fraction form
    13,874.58/20,800.94 = 5,104.71/x
  3. Step 3: Cross multiply
    13,874.58x = 20,800.94 × 5,104.71
  4. Step 4: Simplify right side
    13,874.58x = 106,182,740.90
  5. Step 5: Solve for x
    x = 106,182,740.90/13,874.58
  6. Step 6: Final answer
    x = 7,653.04

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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.