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Finding the Fourth Proportional to 13,793.70, 20,714.85 and 13,356.30

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Solution

The fourth proportional to 13,793.70, 20,714.85 and 13,356.30 is: 20,057.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,793.70 : 20,714.85 = 13,356.30 : x
  2. Step 2: Convert to fraction form
    13,793.70/20,714.85 = 13,356.30/x
  3. Step 3: Cross multiply
    13,793.70x = 20,714.85 × 13,356.30
  4. Step 4: Simplify right side
    13,793.70x = 276,673,751.06
  5. Step 5: Solve for x
    x = 276,673,751.06/13,793.70
  6. Step 6: Final answer
    x = 20,057.98

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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.