Home / 13,816.60-20,727.60-5,495.20

Finding the Fourth Proportional to 13,816.60, 20,727.60 and 5,495.20

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Solution

The fourth proportional to 13,816.60, 20,727.60 and 5,495.20 is: 8,243.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,816.60 : 20,727.60 = 5,495.20 : x
  2. Step 2: Convert to fraction form
    13,816.60/20,727.60 = 5,495.20/x
  3. Step 3: Cross multiply
    13,816.60x = 20,727.60 × 5,495.20
  4. Step 4: Simplify right side
    13,816.60x = 113,902,307.52
  5. Step 5: Solve for x
    x = 113,902,307.52/13,816.60
  6. Step 6: Final answer
    x = 8,243.87

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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.