Home / 13,818.18-20,714.40-5,496.60

Finding the Fourth Proportional to 13,818.18, 20,714.40 and 5,496.60

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Solution

The fourth proportional to 13,818.18, 20,714.40 and 5,496.60 is: 8,239.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,818.18 : 20,714.40 = 5,496.60 : x
  2. Step 2: Convert to fraction form
    13,818.18/20,714.40 = 5,496.60/x
  3. Step 3: Cross multiply
    13,818.18x = 20,714.40 × 5,496.60
  4. Step 4: Simplify right side
    13,818.18x = 113,858,771.04
  5. Step 5: Solve for x
    x = 113,858,771.04/13,818.18
  6. Step 6: Final answer
    x = 8,239.78

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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.