Home / 13,704.36-20,556.55-3,316.11

Finding the Fourth Proportional to 13,704.36, 20,556.55 and 3,316.11

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Solution

The fourth proportional to 13,704.36, 20,556.55 and 3,316.11 is: 4,974.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,704.36 : 20,556.55 = 3,316.11 : x
  2. Step 2: Convert to fraction form
    13,704.36/20,556.55 = 3,316.11/x
  3. Step 3: Cross multiply
    13,704.36x = 20,556.55 × 3,316.11
  4. Step 4: Simplify right side
    13,704.36x = 68,167,781.02
  5. Step 5: Solve for x
    x = 68,167,781.02/13,704.36
  6. Step 6: Final answer
    x = 4,974.17

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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.